Perhaps you should try some spelling variations:
nhan duc » nhan duoc, nhan luc, phan duc
sang tao » hang tai
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
ve nhan » ve nha, de nhan, va nhan
sach tu » sach thu, cach tu, sach ty
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 tu ((sang tao) or (dung tai)) hoi. hieu ve nhan duc va hanh lai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu ((sang tao) OR (dung tai)) hoi. hieu ve nhan duc va hanh lai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach tu ((sang tao) or (dung tai)) hoi. hieu ve nhan duc va hanh lai ((cua tre) or (cua te))*.