Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
lao dong » van dong
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
cac toc » cac toi, cac nuoc, cac thoi
ha dong » hoat dong, van dong
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
di cua » dai cua, doi cua, de cua
cua te » cua tu

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 cac toc ((lao dong) OR (ha dong)) di cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu van cac toc ((lao dong) OR (ha dong)) di cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu van cac toc ((lao dong) OR (ha dong)) di cua te*.