Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
tu sach » thu sach, su sach, te sach
hanh di » hanh vi, hanh de, hang di
ly vang » ly van, ly quang
ly hang » ly quang
cuc va » chuc va, duc va, cu va
cuu va » cuu van, cuu ve
di cua » dai cua, doi cua, de cua
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: tu sach ((ly hang) or (ly vang)) xa hoi. hieu viec cua ((cuc va) OR (cuu va)) hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly hang) OR (ly vang)) xa hoi. hieu viec cua ((cuc va) OR (cuu va)) hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ly hang) or (ly vang)) xa hoi. hieu viec cua ((cuc va) OR (cuu va)) hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ly hang) or (ly vang)) xa hoi. hieu viec cua ((cuc va) OR (cuu va)) hanh di cua te*.