Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
sanh ky » hanh ky, nganh ky, thanh ky
sang ky » sang kyo, dang ky, tang ky
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sanh ky) OR (sang ky)) nang xa hoi. hieu van cam xuc va hanh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sanh ky) OR (sang ky)) nang xa hoi. hieu van cam xuc va hanh ((vi cua) OR (di cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sanh ky) OR (sang ky)) nang xa hoi. hieu van cam xuc va hanh ((vi cua) or (di cua)) tre".
• Adding a wildcard symbol may retrieve word variants: so ((sanh ky) OR (sang ky)) nang xa hoi. hieu van cam xuc va hanh ((vi cua) or (di cua)) tre*.