Perhaps you should try some spelling variations:
nhieu vien » nhieu viec, nhiet dien, thieu nien
trinh vi » trinh va, trinh ve, trinh viet
vien cac » vien bach, vien dai, vien da
tu sach » thu sach, te sach, tu cach
xuc lap » tuc lap, truc lap
cac xuc » cam xuc, cac nuoc, chat xuc
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di 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 (lang xa)) hoi. nhieu vien cac xuc lap trinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky ((nang xa) OR (lang xa)) hoi. nhieu vien cac xuc lap trinh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky ((nang xa) OR (lang xa)) hoi. nhieu vien cac xuc lap trinh vi cua tre*".