Perhaps you should try some spelling variations:
cham xuc » chat xuc, cham soc, pham duc
kho tang » cao tang
cua tre » cua te, cuu tre, cua triet
danh le » dinh le, manh le, anh le
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
van hoe » van hoa, van hoc, van hieu
le cua » ly cua
vu sai » vu hai, vu san, vu dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sai ((kho tang) or (ky nang)) van hoe. hieu ve ((cham xuc) OR (cam xuc)) va danh le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ((kho tang) OR (ky nang)) van hoe. hieu ve ((cham xuc) OR (cam xuc)) va danh le cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sai ((kho tang) or (ky nang)) van hoe. hieu ve ((cham xuc) OR (cam xuc)) va danh le cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sai ((kho tang) or (ky nang)) van hoe. hieu ve ((cham xuc) OR (cam xuc)) va danh le cua tre*.