Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
toc sac » toc sach, toc san, hoc sach
nang xa » nang x, lang xa, nang ma
hieu le » hieu ve, hieu he, hieu ly
hang di » hang doi, hang vi, hang dien
sac ky » cac ky, sai ky
lao va » tao va, bao va, dao va
cao va » cao van, tao va, co va
di cua » dai cua, doi cua, de cua
le ca » le cua, le cap, le cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky nang xa hoi. hieu le ca ((lao va) or (cao va)) hang di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky nang xa hoi. hieu le ca ((lao va) OR (cao va)) hang di cua viet.
• Adding a wildcard symbol may retrieve word variants: toc sac ky nang xa hoi. hieu le ca ((lao va) or (cao va)) hang di cua viet*.