Perhaps you should try some spelling variations:
lam duoc » nam duoc, luat duoc, lam thuoc
duoc van » duoc va, duc van, duoc ban
dua tren » dung tren
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va lam » van lam, va lap
ban vi » ban voi, ban va, ban ve
cua te » cua tu

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)) ty nang xa hoi. lieu va lam duoc van ban vi ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty nang xa hoi. lieu va lam duoc van ban vi ((dua tren) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ty nang xa hoi. lieu va lam duoc van ban vi ((dua tren) or (cua te))*.