Perhaps you should try some spelling variations:
sang tao » hang tai
hieu van » hieu va, thien van, lieu va
van nhan » van phan, van thanh, danh nhan
nhan luc » nang luc
ban hang » ngan hang
hang lap » sang lap, hang la, hang tap
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty sang » ty xang, ty hang, duy sang
luc ban » duc ban, cuc ban, luc bat
cua tre » cuu tre, cua triet, dua tren
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty sang tao boi. hieu van nhan luc ban hang lap ((cua tre) OR (cua te))~.
• Adding a wildcard symbol may retrieve word variants: tu sach ty sang tao boi. hieu van nhan luc ban hang lap ((cua tre) or (cua te))*.