Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
cac xuc » cac nuoc, chat xuc, cac cuoc
cua tre » cuu tre, cua triet, dua tren
y lang » o lang, _ lang, tay lang
ca dan » cac dan, ca dao
dan vi » doan vi, don vi, dan va
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: su sach y lang xa hoi. hieu viec ((cac xuc) OR (cam xuc)) ca dan vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y lang xa hoi. hieu viec ((cac xuc) OR (cam xuc)) ca dan vi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y lang xa hoi. hieu viec ((cac xuc) OR (cam xuc)) ca dan vi ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sach y lang xa hoi. hieu viec ((cac xuc) OR (cam xuc)) ca dan vi ((cua tre) or (cua te))*.