Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
day thanh » dao thanh, dat thanh, da thanh
viec tai » vien tai, lieu tai, viec lam
toc sach » hoc sach, doc sach, thuoc sach
thuc day » thuc dan, thuc vat
tai thuc » thai thuc, tri thuc, dai thuc
tu sach » thu sach, su sach, te sach
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
di cua » doi cua, de cua, do cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (toc sach)) ky dang xa hoi. hieu viec tai thuc day thanh ((di cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) ky dang xa hoi. hieu viec tai thuc day thanh ((di cua) OR (dai cua)) te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (toc sach)) ky dang xa hoi. hieu viec tai thuc day thanh ((di cua) or (dai cua)) te*.