Perhaps you should try some spelling variations:
chau triet » cau triet, cau trieu, chau tuyet
cua triet » cua viet, su triet, va triet
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, su sach, vu khach
sach ky » sac ky, sach y, sach ty
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 ky nang xa hoi. lieu va tham luc van hanh lai ((chau triet) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang xa hoi. lieu va tham luc van hanh lai ((chau triet) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. lieu va tham luc van hanh lai ((chau triet) or (cua triet))*.