Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
va cua » va chua, via cua, ca 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 cac ky ((nang xa) OR (nang ma)) hoi. ((hieu ve) or (hieu va)) cam duc va hanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky ((nang xa) OR (nang ma)) hoi. ((hieu ve) OR (hieu va)) cam duc va hanh va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky ((nang xa) OR (nang ma)) hoi. ((hieu ve) or (hieu va)) cam duc va hanh va cua te".
• Adding a wildcard symbol may retrieve word variants: tu cac ky ((nang xa) OR (nang ma)) hoi. ((hieu ve) or (hieu va)) cam duc va hanh va cua te*.