Perhaps you should try some spelling variations:
nhanh cong » nhanh chong, thanh cong, nganh cong
nganh nong » nganh cong
cac nganh » hoc nganh
cong tac » cong ty
nong khi » cong khi, dong khi, nong thi
su sach » vu sach
so sach » so sanh, bo sach, co sach
su cac » tu cac, su cao, su can

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) OR (so sach)) nhanh cong tac đong luc ) or ( su cac nganh nong khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((su sach) OR (so sach)) nhanh cong tac đong luc ) OR ( su cac nganh nong khi đong luc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((su sach) OR (so sach)) nhanh cong tac đong luc ) or ( su cac nganh nong khi đong luc ))".
• Adding a wildcard symbol may retrieve word variants: (( ((su sach) OR (so sach)) nhanh cong tac đong luc ) or ( su cac nganh nong khi đong luc ))*.