Perhaps you should try some spelling variations:
canh tay » canh tac, thanh tay, anh ta
cham duc » pham duc, cham soc, pham duy
van hanh » van thanh, ban hanh, van ban
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
van anh » van thanh, tuan anh, van minh
lai cua » dai cua, hai cua, lai chau
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((canh tay) or (sach y)) nang x hoi. hieu vu cham duc ((van hanh) or (van anh)) lai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((canh tay) OR (sach y)) nang x hoi. hieu vu cham duc ((van hanh) OR (van anh)) lai cua vat.
• Adding a wildcard symbol may retrieve word variants: tu ((canh tay) or (sach y)) nang x hoi. hieu vu cham duc ((van hanh) or (van anh)) lai cua vat*.