Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
thanh vi » thanh va, thanh ve, nhanh vi
cho hoc » co hoc, khoa hoc
tay hoi » tay ho, tao hoi, tay thai
nam luc » nang luc, nhan luc, nam thuc
luc van » luoc van, luu van, duc van
san ky » sang ky, van ky, dan ky
te san » te ban, ke san, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky nang ((tay hoi) or (cho hoc)). thien van nam luc van ((thanh vi) or (hanh vi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky nang ((tay hoi) OR (cho hoc)). thien van nam luc van ((thanh vi) OR (hanh vi)) cua triet.
• Adding a wildcard symbol may retrieve word variants: te san ky nang ((tay hoi) or (cho hoc)). thien van nam luc van ((thanh vi) or (hanh vi)) cua triet*.