Perhaps you should try some spelling variations:
viec cac » viec cua, viec lam, viec va
vien cac » vien bach, vien dai, vien da
su sach » so sach
cam dan » cac dan, ca dan, nam dan
xuc cam » phuc cam
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, vu khach
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) OR (vien cac)) xuc 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) OR (vien cac)) xuc cam dan vi cuu 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) OR (vien cac)) xuc 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) OR (vien cac)) xuc cam dan vi cuu tre*.