Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
nang loc » nang doc, nang hoc, mang loc
tai chau » lai chau, mai chau, hai chau
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
han tai » hang tai, nhan tai, van tai
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van 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) OR (nang luc)) va han tai 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) OR (nang luc)) va han tai chau triet".
• Adding a wildcard symbol may retrieve word variants: vu sach v nang xa hoi. hieu vu ((nang loc) OR (nang luc)) va han tai chau triet*.