Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu viec » nhieu viec, hieu ve, sieu viet
phuc cam » phan cam, phuc co, phuc cua
viec cac » vien cac, viec cua, viec lam
cua tre » cua te, cuu tre, dua tren
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
dan vi » doan vi, don vi, dan va

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. hieu viec cac ((xuc cam) or (phuc cam)) dan vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang xa hoi. hieu viec cac ((xuc cam) OR (phuc cam)) dan vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. hieu viec cac ((xuc cam) or (phuc cam)) dan vi ((cua tre) or (cua triet))*.