Perhaps you should try some spelling variations:
sach kem » hanh kem
cham tuc » nham thuc, pham thuc, tham thuc
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
cau cua » cau qua, ca cua, cu cua
tuc va » thuc va, truc va, tuc xa
va dan » ca dan, va dao, va dau

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 kem) or (sach y)) nang xa hoi. hieu vu cham tuc va dan ((cau cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach kem) OR (sach y)) nang xa hoi. hieu vu cham tuc va dan ((cau cua) OR (dai cua)) te.
• Adding a wildcard symbol may retrieve word variants: te ((sach kem) or (sach y)) nang xa hoi. hieu vu cham tuc va dan ((cau cua) or (dai cua)) te*.