Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
van doan » van doanh, van toan, van hoan
ban cua » ban quan
va doan » va doanh, va dan, va don
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet

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 ky) or (sach y)) nang xa hoi. hieu ve cham tuc ((va doan) OR (van doan)) ban cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) nang xa hoi. hieu ve cham tuc ((va doan) OR (van doan)) ban cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sach y)) nang xa hoi. hieu ve cham tuc ((va doan) OR (van doan)) ban cua tre*".