Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
tham xuc » tham nuoc, tham thuc, pham duc
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, dao hanh
va danh » va dinh, va dan, dia danh
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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 nang xa hoi. hieu van tham xuc ((((va hanh) OR (ban hanh))) or (va danh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu van tham xuc ((((va hanh) OR (ban hanh))) OR (va danh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu van tham xuc ((((va hanh) OR (ban hanh))) or (va danh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu van tham xuc ((((va hanh) OR (ban hanh))) or (va danh)) vi cua tre*.