Perhaps you should try some spelling variations:
kyo nang » ky nang, khoi nang, ki nang
hieu van » hieu va, thien van, lieu va
so sang » so sanh, so dang, so bang
tuc cac » tu cac, tich cac
cac tuc » cac toc, cac tu, cac tac
van cac » van hac, van cau, van bac
nang xa » nang x, lang xa, nang ma
so lang » o lang, so dang, hoa lang
dan li » ban li, han li, pan li
dan de » dan den, dang de, van de
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: ((so sang) OR (so lang)) kyo nang xa hoi. hieu van cac tuc cac ((dan li) or (dan de)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sang) OR (so lang)) kyo nang xa hoi. hieu van cac tuc cac ((dan li) OR (dan de)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sang) OR (so lang)) kyo nang xa hoi. hieu van cac tuc cac ((dan li) or (dan de)) cua te*".