Perhaps you should try some spelling variations:
cua viet » hoa viet, cua vat, cua dieu
ca viet » va viet, co viet, hoa viet
van anh » van thanh, tuan anh, van minh
thu san » thuy san, thu ban, phu san
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
luc van » luoc van, luu van, duc van
anh vi » hanh vi, anh va, anh ve
tu san » tu ban, tu can, vu san
qua ca » qua cac, qua cua, qua cai
ca luc » cau luc, ca lua

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 lang xa hoi. hieu qua ca luc van anh vi ((cua viet) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (thu san)) ky lang xa hoi. hieu qua ca luc van anh vi ((cua viet) OR (ca viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (thu san)) ky lang xa hoi. hieu qua ca luc van anh vi ((cua viet) or (ca viet))".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (thu san)) ky lang xa hoi. hieu qua ca luc van anh vi ((cua viet) or (ca viet))*.