Perhaps you should try some spelling variations:
viec bich » viec binh, vien bach, viec bi
hieu viec » nhieu viec, hieu ve, sieu viet
bich ngoc » bich nga, dinh ngoc
hanh du » hanh dua, hanh tu, hanh de
va hanh » van hanh, va thanh, va danh
ngoc va » nuoc va, ngoc ha, goc va
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
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: so ((sach ty) OR (sach y)) nang xa hoi. hieu viec bich ngoc va hanh du ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach ty) OR (sach y)) nang xa hoi. hieu viec bich ngoc va hanh du ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ty) OR (sach y)) nang xa hoi. hieu viec bich ngoc va hanh du ((cua te) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: so ((sach ty) OR (sach y)) nang xa hoi. hieu viec bich ngoc va hanh du ((cua te) or (cua tu))*.