Perhaps you should try some spelling variations:
hang dien » quang dien, dang dieu, sang dieu
nhan dien » nhan vien, nhan dieu, nhan dan
dua tren » dung tren
van lam » van nam
van cau » van dau, van hau, van chat
nang xa » nang x, lang xa, nang ma
san ky » sang ky, van ky, dan ky
loc va » hoc va, luc va
tu san » thu san, tu ban, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky nang xa hoi. hieu ((van lam) or (van cau)) loc va ((hang dien) or (nhan dien)) dua tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang xa hoi. hieu ((van lam) OR (van cau)) loc va ((hang dien) OR (nhan dien)) dua tren.
• Adding a wildcard symbol may retrieve word variants: tu san ky nang xa hoi. hieu ((van lam) or (van cau)) loc va ((hang dien) or (nhan dien)) dua tren*.