Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
sang ma » tang ma, nang ma, sang tao
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
va cam » va cham, va cac, va cao
vi cua » vai cua
di cua » dai cua, doi cua, de cua
bach » sach, cach, bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ly ((nang xa) or (sang ma)) hoi. hieu va cam duc va hanh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ly ((nang xa) OR (sang ma)) hoi. hieu va cam duc va hanh ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: vu bach ly ((nang xa) or (sang ma)) hoi. hieu va cam duc va hanh ((vi cua) or (di cua)) tre*.