Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hung luong » hung vuong, dung luong, hang luong
luong tham » luong thanh, luong tai, luong thi
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tham toan » pham toan, tam toan, thuat toan
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet tach - thanh ((trong van) or (trong cac)) hung luong tham toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - thanh ((trong van) OR (trong cac)) hung luong tham toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - thanh ((trong van) or (trong cac)) hung luong tham toan cau*.