Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
thanh lam » thanh lap, hanh lam, thanh nam
hoc sach » hoc sinh, hoc cac, hoc anh
thanh la » thanh lap, thanh lan, thanh lay
vien cac » vien bach, vien dai, vien da
ve triet » va trien, su triet
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
ma hoi » mai hoi, xa hoi, ma hoa
cac tu » cac thu, cach tu, cac du
tu xa » tu xay, tu va, te xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ty nang ma hoi. hieu vien cac tu xa ((thanh la) or (thanh lam)) ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ty nang ma hoi. hieu vien cac tu xa ((thanh la) OR (thanh lam)) ve triet.
• Adding a wildcard symbol may retrieve word variants: hoc sach ty nang ma hoi. hieu vien cac tu xa ((thanh la) or (thanh lam)) ve triet*.