**Command** |
**Example** |
**Result** |

*keyword* |
Math |
All adverts with **...Math...** (Mathematics, Biomathematics, mathematical, etc) |

*"keyword"* |
"Algebra" |
All adverts with exactly the word **Algebra** |

*keyword1* *keyword2* |
Algebra Geometry |
All adverts with **Algebra** and/or **Geometry** |

**"***keyword1* *keyword2***"** |
"Algebraic Geometry" |
All adverts with exactly the phrase **Algebraic Geometry** |

**+***keyword1* **+***keyword2* |
+Algebra +Geometry |
All adverts with **Algebra** and **Geometry** |

**+***keyword1* **-***keyword2* |
+Algebra -Geometry -Geometry +Algebra |
All adverts with **Algebra** and not **Geometry** |

*keyword****** |
Geom* |
All adverts starting with **Geom...** (Geometry, Geomatics, geometrically, etc) |

**Country[***country abbreviation***]**
(see here all country abbreviations used) |
Country[ch]
Country[at ch de] |
All adverts in **Switzerland**
All adverts in **Austria**, **Switzerland** or **Germany** |

**Location[***city***]** |
Location[London]
Location["New York" London] |
All adverts in **London**
All adverts in **New York** or **London** |

**Institution[***company/university***]** |
Institution["Princeton University"]
Institution["Princeton University" "Lawrence Berkeley National Laboratory"] |
All adverts at **Princeton University**
All adverts at **Princeton University** or **Lawrence Berkeley National Laboratory** |