Perhaps you should try some spelling variations:
thanh xuc » thanh xuan, thanh huy, thanh bac
hieu van » thien van, lieu va, hieu ve
hanh vai » hanh vi, hanh va, hanh tai
thu sach » tu sach, thuat sach, thuoc sach
cau tren » cu tren, dau tren, ca tren
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
hanh xu » hanh tu, hanh sua, hanh cua
va hanh » van hanh, va thanh, va danh
tu nang » tru nang, tu nong, tu nano
vai cau » va cau, van cau, vai cac
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach tu nang x hoi. ((hieu van) or (hieu va)) ((thanh xuc) OR (hanh xu)) va hanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nang x hoi. ((hieu van) OR (hieu va)) ((thanh xuc) OR (hanh xu)) va hanh vai cau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tu nang x hoi. ((hieu van) or (hieu va)) ((thanh xuc) OR (hanh xu)) va hanh vai cau tren*".