Perhaps you should try some spelling variations:
sach kem » hanh kem
cham tuc » nham thuc, pham thuc, tham thuc
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
hanh ve » hanh vi, hanh va, hanh kem
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
ve su » va su

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 kem) or (sac ky)) nang xa hoi. lieu va cham tuc va hanh ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach kem) OR (sac ky)) nang xa hoi. lieu va cham tuc va hanh ve su triet.
• Adding a wildcard symbol may retrieve word variants: su ((sach kem) or (sac ky)) nang xa hoi. lieu va cham tuc va hanh ve su triet*.