Perhaps you should try some spelling variations:
nhieu vien » nhieu viec, nhiet dien, thieu nien
trinh vi » trinh va, trinh ve, trinh viet
va trinh » van trinh, va tinh, lap trinh
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
cac xuc » cam xuc, chat xuc, cac cuoc
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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 x hoi. nhieu vien ((cac xuc) or (cac nuoc)) va trinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang x hoi. nhieu vien ((cac xuc) OR (cac nuoc)) va trinh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang x hoi. nhieu vien ((cac xuc) or (cac nuoc)) va trinh vi cua tre*.