Perhaps you should try some spelling variations:
sang tao » hang tai
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
phan lap » phan dau
te sach » toc sach
luc bat » suc bat, luc nhat, luat bat
cua tre » cuu tre, cua triet, dua tren
luc ban » duc ban, cuc ban, luc van
sach ty » sach y, sach tu, sach thu
tao hoi » tao khoi, tao boi, tay hoi
ty sang » ty xang, ty hang, duy sang
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: te sach ty sang tao hoi. hieu van cham ((luc ban) or (luc bat)) phan lap ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty sang tao hoi. hieu van cham ((luc ban) OR (luc bat)) phan lap ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sach ty sang tao hoi. hieu van cham ((luc ban) or (luc bat)) phan lap ((cua tre) or (cua te))*.