Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
hieu van » hieu va, thien van, lieu va
thuc day » thuc dan, thuc vat
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
truc va » thuc va, thuc vat, trung va
hai chu » hai chau, hoi chu, hai chi
chu tre » cho tre, chu tri, cuu tre
tu ban » thu ban, te ban
ban ky » van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ban ky nang xa hoi. hieu van cau ((truc va) or (thuc day)) thanh hai chu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ky nang xa hoi. hieu van cau ((truc va) OR (thuc day)) thanh hai chu tre.
• Adding a wildcard symbol may retrieve word variants: tu ban ky nang xa hoi. hieu van cau ((truc va) or (thuc day)) thanh hai chu tre*.