Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
thai cua » than cua, tai cuc, tri cua
hieu van » thien van, lieu va, hieu ve
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
cao hoi » cau hoi, co hoi, cao hoc
can ky » van ky, dan ky, ban ky
su can » su van, su cao, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: su can ky nang cao hoi. ((hieu van) OR (hieu va)) chat xuc ((va hanh) or (va danh)) thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su can ky nang cao hoi. ((hieu van) OR (hieu va)) chat xuc ((va hanh) OR (va danh)) thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su can ky nang cao hoi. ((hieu van) OR (hieu va)) chat xuc ((va hanh) or (va danh)) thai cua tre".
• Adding a wildcard symbol may retrieve word variants: su can ky nang cao hoi. ((hieu van) OR (hieu va)) chat xuc ((va hanh) or (va danh)) thai cua tre*.