Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cau tren » cu tren, dau tren, ca tren
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
van lam » van nam
lam luc » lao luc, lam duoc
danh di » xanh di, danh dien, danh gia
danh du » danh dau, danh tu, dinh du
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
luc va » duc va, tuc va, loc va

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 tang xa hoi. hieu van lam luc va ((danh di) or (danh du)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky tang xa hoi. hieu van lam luc va ((danh di) OR (danh du)) cau tren*.