Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hanh lai » hanh lam, hanh tai, thanh lap
va hanh » van hanh, va thanh, va danh
cau luc » cau truc, cau phuc
te sach » toc sach
hieu ve » hieu va, hieu van
tu nong » tu dong, tu cong, tu tong
tu nang » tru nang, tu nano, tu lang
luc va » duc va, tuc va, loc va
cua te » cua tu
ve cau » ke cau, va cau, ve cac

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 ((tu nang) or (tu nong)) xa hoi. hieu ve cau luc va hanh lai ((cua te) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nang) OR (tu nong)) xa hoi. hieu ve cau luc va hanh lai ((cua te) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ((tu nang) or (tu nong)) xa hoi. hieu ve cau luc va hanh lai ((cua te) or (ve triet))*.