Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
thuc xa » thuc xay, tuc xa, thuc va
xa hanh » xa thanh, xa khanh, va hanh
cua tre » cuu tre, cua triet, dua tren
van am » van lam, van dam, van ai
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 ky nang ma hoa. hieu ((van am) OR (van nam)) thuc xa hanh lai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ma hoa. hieu ((van am) OR (van nam)) thuc xa hanh lai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ma hoa. hieu ((van am) OR (van nam)) thuc xa hanh lai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ma hoa. hieu ((van am) OR (van nam)) thuc xa hanh lai ((cua tre) or (cua te))*.