Perhaps you should try some spelling variations:
ban thanh » ban hang
ban hanh » ban hang
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
ve cam » ve cham, ve cac, va cam
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cam xuc ((ban thanh) or (ban hanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cam xuc ((ban thanh) OR (ban hanh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cam xuc ((ban thanh) or (ban hanh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cam xuc ((ban thanh) or (ban hanh)) vi cua tre*.