Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
dang van » hoang van, hang va
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
dai lao » dai lan, dai thao, dai luan
sach ty » sach y, sach tu, sach thu
van hoi » van hoa, van hoc, van hoe
ty dang » ty xang, ky dang, ty hang
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: te sach ty dang van hoi. hieu viec ((dai lao) or (dai han)) ((va tinh) OR (may tinh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty dang van hoi. hieu viec ((dai lao) OR (dai han)) ((va tinh) OR (may tinh)) vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty dang van hoi. hieu viec ((dai lao) or (dai han)) ((va tinh) OR (may tinh)) vai cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ty dang van hoi. hieu viec ((dai lao) or (dai han)) ((va tinh) OR (may tinh)) vai cua te*.