Perhaps you should try some spelling variations:
van tham » van thanh, van tuan, van tai
van chat » cao chat
hanh dai » hanh tai, hanh dao, vanh dai
cua viet » ca viet, hoa viet, cua dieu
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
soc va » hoc va, loc va, doc va

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

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