Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
trinh te » trinh tu, trinh he, trinh ke
va trinh » van trinh, va tinh, lap trinh
viec cac » vien cac, viec cua, viec lam
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, te sach, tu cach
nang xa » lang xa, nang ma, mang xa
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
te cua » tue cua, le cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ky ((nang xa) OR (nang x)) hoi. nhieu viec cac xuc va trinh te cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky ((nang xa) OR (nang x)) hoi. nhieu viec cac xuc va trinh te cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky ((nang xa) OR (nang x)) hoi. nhieu viec cac xuc va trinh te cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky ((nang xa) OR (nang x)) hoi. nhieu viec cac xuc va trinh te cua tre*.