Perhaps you should try some spelling variations:
van chat » cao chat
hanh dai » hanh tai, hanh dao, vanh dai
van hanh » van thanh, ban hanh, van anh
van cham » van tham, va cham, van pham
soc van » hoc van, oc van, sac van
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
su sac » su sach, su cac
su xac » pu xac, su cac
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) OR (su xac)) ky lang ha noi. hieu ((van cham) or (van chat)) soc van hanh dai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su xac)) ky lang ha noi. hieu ((van cham) OR (van chat)) soc van hanh dai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su xac)) ky lang ha noi. hieu ((van cham) or (van chat)) soc van hanh dai cua tu".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su xac)) ky lang ha noi. hieu ((van cham) or (van chat)) soc van hanh dai cua tu*.