Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
cac phuc » cau phuc, khac phuc, cach thuc
phuc cam » phan cam, phuc co, phuc cua
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
cam dan » cac dan, ca dan, nam dan
cuu tre » cua tre, cau tren, cau treo
dan vi » doan vi, don vi, dan va
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu sach)) ky nang xa hoi. hieu viec cac phuc cam dan vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang xa hoi. hieu viec cac phuc cam dan vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky nang xa hoi. hieu viec cac phuc cam dan vi cuu tre*.