Perhaps you should try some spelling variations:
vanh dai » van dai, vanh tai, lanh dao
van vanh » van anh, van hanh, van manh
duc van » duc va, duc tan, duc manh
nang xa » nang x, lang xa, nang ma
tu san » thu san, tu ban, vu san
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
tu can » tu ban, tu cac, thu canh
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) OR (tu can)) ky nang xa hoi. hieu ((ve cam) or (ve cac)) duc van vanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu can)) ky nang xa hoi. hieu ((ve cam) OR (ve cac)) duc van vanh dai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (tu can)) ky nang xa hoi. hieu ((ve cam) or (ve cac)) duc van vanh dai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (tu can)) ky nang xa hoi. hieu ((ve cam) or (ve cac)) duc van vanh dai cua te*.