Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
lang van » dang van, tang van, hoang van
van hieu » cao hieu
hieu van » hieu va, thien van, lieu va
va trien » va truyen, va thiet, va tuyen
hanh va » hang va
van cam » van nam, van lam, van cau
cam luc » cam xuc, cau luc
ky lang » ky nang, ky dang, ky tang
tu van » tu va
luc va » duc va, tuc va, loc 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 van ky lang van hieu. hieu van cam luc va ((hanh vi) or (hanh va)) ((va trien) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu van ky lang van hieu. hieu van cam luc va ((hanh vi) OR (hanh va)) ((va trien) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: tu van ky lang van hieu. hieu van cam luc va ((hanh vi) or (hanh va)) ((va trien) or (cua viet))*.