Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
luoc van » luoc can, luoc va, luot van
te sach » toc sach
cao hoi » cau hoi, co hoi, cao hoc
hieu va » hieu qua
luc van » luu van, duc van, luc va
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach v nang cao hoi. ((hieu va) or (lieu va)) nang ((luc van) or (luoc van)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang cao hoi. ((hieu va) OR (lieu va)) nang ((luc van) OR (luoc van)) hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach v nang cao hoi. ((hieu va) or (lieu va)) nang ((luc van) or (luoc van)) hanh vi cua triet*.