Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ve triet » va trien, su triet
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
van cam » van nam, van lam, van cau
thuc va » thuc vat, thuc dan, thuc day
danh de » hanh de, dan de, dang de
bao ky » cao ky, ban ky, bac ky
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te bao ky dang xa hoi. hieu van cam ((xuc va) or (thuc va)) danh de ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bao ky dang xa hoi. hieu van cam ((xuc va) OR (thuc va)) danh de ve triet.
• Adding a wildcard symbol may retrieve word variants: te bao ky dang xa hoi. hieu van cam ((xuc va) or (thuc va)) danh de ve triet*.