Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
lam duoc » nam duoc, luat duoc, lam thuoc
tay lang » tai lang, tay tang, tay quang
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
vai cau » va cau, van cau, vai cac
va hanh » van hanh, va thanh, va danh
lam xuc » cam xuc
ky tang » ky nang, ky dang, kho tang
te sac » te sach, te cac, te 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 sac ((tay lang) or (ky tang)) xa hoi. hieu van ((lam xuc) OR (lam duoc)) va hanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ((tay lang) OR (ky tang)) xa hoi. hieu van ((lam xuc) OR (lam duoc)) va hanh vai cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ((tay lang) or (ky tang)) xa hoi. hieu van ((lam xuc) OR (lam duoc)) va hanh vai cau tren".
• Adding a wildcard symbol may retrieve word variants: te sac ((tay lang) or (ky tang)) xa hoi. hieu van ((lam xuc) OR (lam duoc)) va hanh vai cau tren*.