Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
tham luc » than luc, tham nuoc, tham thuc
van hanh » van thanh, ban hanh, van anh
hanh lai » hanh lam, hanh tai, thanh lap
vu sach » vu bach, vu khach
su sach » so sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va tham » van tham, va cham, va thanh
luc van » luoc van, luu van, duc van

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) OR (su sach)) ty nang xa hoi. lieu va tham luc van hanh lai chau triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) ty nang xa hoi. lieu va tham luc van hanh lai chau triet".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) ty nang xa hoi. lieu va tham luc van hanh lai chau triet*.