Perhaps you should try some spelling variations:
nang loc » nang luc, nang doc, nang hoc
hai chau » lai chau, hat chau, mai chau
tai chau » lai chau, mai chau, thi chau
ha chau » hat chau, a chau, lai chau
vu sach » vu bach, su sach, vu khach
vu nang » vuc nang, va nang, vu dang
hieu vu » hieu va, hieu ve, hieu su
nang xa » nang x, lang xa, nang ma
loc va » hoc va, luc va
sach v » sach va, sach y, sach 2
v nang » va nang, van nang, voi nang
va han » va phan, van han, va hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach v nang xa hoi. hieu vu nang loc va han ((tai chau) or (((hai chau) OR (ha chau)))) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach v nang xa hoi. hieu vu nang loc va han ((tai chau) OR (((hai chau) OR (ha chau)))) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach v nang xa hoi. hieu vu nang loc va han ((tai chau) or (((hai chau) OR (ha chau)))) triet".
• Adding a wildcard symbol may retrieve word variants: vu sach v nang xa hoi. hieu vu nang loc va han ((tai chau) or (((hai chau) OR (ha chau)))) triet*.