Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
thu san » thuy san, thu ban, phu san
duc van » duc va, duc tan, duc manh
san ky » sang ky, van ky, dan ky
ve cam » ve cham, va cam, ve cai
ve cac » vien cac
cua te » cua tu
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: thu san ky nang x hoi. hieu ((ve cam) or (((ve cac) OR (va cac)))) duc van hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu san ky nang x hoi. hieu ((ve cam) OR (((ve cac) OR (va cac)))) duc van hanh dai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu san ky nang x hoi. hieu ((ve cam) or (((ve cac) OR (va cac)))) duc van hanh dai cua te".
• Adding a wildcard symbol may retrieve word variants: thu san ky nang x hoi. hieu ((ve cam) or (((ve cac) OR (va cac)))) duc van hanh dai cua te*.