Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thuc van » thuc vat, thuc va, thuc hanh
thuc dan » thuc hanh, hoc dan, thuc vat
thu sac » thu sach, thu san, thu xac
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
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: thu sac ky nang xa hoi. hieu van cam ((((thuc van) OR (thuc dan))) or (duc van)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang xa hoi. hieu van cam ((((thuc van) OR (thuc dan))) OR (duc van)) hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky nang xa hoi. hieu van cam ((((thuc van) OR (thuc dan))) or (duc van)) hanh vi cua tre*".