Perhaps you should try some spelling variations:
nang xa » lang xa, nang ma, mang xa
hieu he » hieu ve, hiem he, hieu le
thu van » thuc van, thuy van, tu van
hanh di » hanh de, hang di, danh di
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
he nam » ha nam, nghe nam
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: vu sac ky ((nang xa) or (nang x)) hoi. hieu he nam thu van ((hanh di) OR (hanh vi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky ((nang xa) OR (nang x)) hoi. hieu he nam thu van ((hanh di) OR (hanh vi)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky ((nang xa) or (nang x)) hoi. hieu he nam thu van ((hanh di) OR (hanh vi)) cua te*".