Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
vuc van » duc van, luc van, thuc van
vi cua » vai cua, di cua
tu sai » tu bai, tu san, tu cai
va cam » va cham, va cao, va cai
sai ky » sac ky
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 sai ky ((nang xa) or (nang ma)) hoi. hieu ((va cam) or (va cac)) vuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky ((nang xa) OR (nang ma)) hoi. hieu ((va cam) OR (va cac)) vuc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((nang xa) or (nang ma)) hoi. hieu ((va cam) or (va cac)) vuc van hanh vi cua te*.