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

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) OR (vi luu)) 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) OR (vi luu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky nang xa hoi. hieu viec cac phuc cam dan ((vi cuu) OR (vi luu)) 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) OR (vi luu)) tre*.