Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
tang van » hoang van, trong van, tang luan
dang van » hoang van, hang va
so sanh » do sanh
qua cam » qua cham, qua cac, qua ca
minh su » hinh su, dinh su, tinh su
hoc cac » hoc cao
cam lo » nam lo, cam ly, cam o
lo van » le van, vo van, so van
su va » su van, tu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc cac) or (so sanh)) ty ((tang van) or (dang van)) hoc. hieu qua cam lo van minh su va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc cac) OR (so sanh)) ty ((tang van) OR (dang van)) hoc. hieu qua cam lo van minh su va triet.
• Adding a wildcard symbol may retrieve word variants: ((hoc cac) or (so sanh)) ty ((tang van) or (dang van)) hoc. hieu qua cam lo van minh su va triet*.