Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
le triet » ve triet, le tien, le viet
thanh va » thanh van, hanh va, thanh ha
nam thuc » nam thuoc, am thuc, nam thu
sach ky » sach y, sach ty, sach kem
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cam tuc » cam xuc, cam tu, dam thuc
sac ky » cac ky, sai ky
va le » va de, vu le

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sac ky)) nang xa hoi. hieu ve ((cam tuc) or (nam thuc)) ban thanh va le triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) nang xa hoi. hieu ve ((cam tuc) OR (nam thuc)) ban thanh va le triet.
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sac ky)) nang xa hoi. hieu ve ((cam tuc) or (nam thuc)) ban thanh va le triet*.