Perhaps you should try some spelling variations:
nhan loc » nhan luc, nhan hoc, nhan loai
hang tai » hang va, dung tai
hanh lam » thanh lap, hanh kem, hanh va
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
ve nhan » ve nha, de nhan, va nhan
hieu ve » hieu va, hieu van
loc va » hoc va, luc va
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 y ((sang tao) OR (hang tai)) hoi. hieu ve nhan loc va hanh lam ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((sang tao) OR (hang tai)) hoi. hieu ve nhan loc va hanh lam ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((sang tao) OR (hang tai)) hoi. hieu ve nhan loc va hanh lam ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((sang tao) OR (hang tai)) hoi. hieu ve nhan loc va hanh lam ((cua tre) or (cua te))*.