Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
thai hoc » dai hoc, bai hoc, hoi hoc
la thanh » lai thanh, lap thanh, le thanh
thanh vi » hanh vi, thanh va, thanh ve
lang xa » lang ha, dang xay
hieu va » lieu va, hieu qua
va thai » van thai, va tai, va tham
hoc la » hoc lam, hoc lap, hoc lao
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky ((lang xa) or (lang van)) hoi. hieu va thai hoc la thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky ((lang xa) OR (lang van)) hoi. hieu va thai hoc la thanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu cac ky ((lang xa) or (lang van)) hoi. hieu va thai hoc la thanh vi cua te*.