Perhaps you should try some spelling variations:
gianh lai » gian lan
nghe nam » nghe lam, nghiep nam, nghe nano
danh lai » danh sai, dinh lam, hanh lam
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
thu xa » thu xac, thu ha, thu xe
he nam » ha nam
ma hoi » mai hoi, xa hoi, ma hoa

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 hoi. hieu ((he nam) or (nghe nam)) thu xa ((danh lai) OR (gianh lai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ma hoi. hieu ((he nam) OR (nghe nam)) thu xa ((danh lai) OR (gianh lai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ma hoi. hieu ((he nam) or (nghe nam)) thu xa ((danh lai) OR (gianh lai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ma hoi. hieu ((he nam) or (nghe nam)) thu xa ((danh lai) OR (gianh lai)) cua tre*.