Perhaps you should try some spelling variations:
thu san » thuy san, thu ban, phu san
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
tu san » tu ban, tu can, vu san
ve cac » va cac, vien cac
va cua » va chua, via cua, ca cua
va cai » va cac, va bai, va dai
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: ((tu san) OR (thu san)) ky nang x hoi. hieu ((va cai) or (ve cac)) duc va hanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (thu san)) ky nang x hoi. hieu ((va cai) OR (ve cac)) duc va hanh va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (thu san)) ky nang x hoi. hieu ((va cai) or (ve cac)) duc va hanh va cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (thu san)) ky nang x hoi. hieu ((va cai) or (ve cac)) duc va hanh va cua te*.