Perhaps you should try some spelling variations:
viet cua » viec cua, viet ca, viet qua
tu sang » thu sang, tu san, tu lang
sang ky » sang kyo, dang ky, tang ky
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
soc van » hoc van, oc van, sac van
van anh » van thanh, tuan anh, van minh
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sang ky ((nang xa) or (lang xa)) hoi. hieu vu cham soc van anh viet cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sang ky ((nang xa) OR (lang xa)) hoi. hieu vu cham soc van anh viet cua tu*.