Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
sach tru » sach truc, sach thu, sach tu
tru nang » tra nang, tri nang, truc nano
hanh lai » hanh lam, hanh tai, thanh lap
va hanh » van hanh, va thanh, va danh
cam luc » cau luc
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
lai va » loai va, mai va, dai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach tru nang xa hoi. ((hieu ve) or (hieu qua)) ((cam luc) or (cam xuc)) va hanh lai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tru nang xa hoi. ((hieu ve) OR (hieu qua)) ((cam luc) OR (cam xuc)) va hanh lai va triet.
• Adding a wildcard symbol may retrieve word variants: tu sach tru nang xa hoi. ((hieu ve) or (hieu qua)) ((cam luc) or (cam xuc)) va hanh lai va triet*.