Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nghien cac » nghiep cach, nghien cuu, nghiep cay
chong dich » luong dich, hang dich
sach hoc » cach hoc, sach hoi, mach hoc
dong hoa » dong hoc, dong co
nhan dan » phan dau, gian dan, nhan tai
su sach » so sach, vu sach
dich xa » dich va, dinh xa, dich can
hoi ca » hoi cua, hoi cac, hoi cau

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 hoc tap, nghien cac ((dong hoa) or (hang va)) nhanh chong dich xa hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tap, nghien cac ((dong hoa) OR (hang va)) nhanh chong dich xa hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien cac ((dong hoa) or (hang va)) nhanh chong dich xa hoi ca nhan dan*.