Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
nhan luc » nang luc
hieu va » lieu va, hieu qua
hanh tu » anh tu, danh tu
va hanh » van hanh, va thanh, va danh
hieu ve » hieu van
cao hoi » cau hoi, co hoi, cao hoc
luc va » duc va, tuc va, loc va
y nang » ky nang, ly nang, v nang
tu cua » hu cua, vu 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) or (toc sach)) y nang cao hoi. ((hieu ve) or (hieu va)) nhan luc va hanh tu cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y nang cao hoi. ((hieu ve) OR (hieu va)) nhan luc va hanh tu cua triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) y nang cao hoi. ((hieu ve) or (hieu va)) nhan luc va hanh tu cua triet*.