Perhaps you should try some spelling variations:
nhan cong » nhanh cong, phan cong, nhap cong
hang khi » bang khi, hang khoa, dang khoi
cam nhan » ca nhan, cam chan, cam nang
cong khi » cong thai, khong khi, co khi
vu sach » vu bach, su sach, vu khach
so sach » so sanh, bo sach, co sach
tu cam » tu cham, tu cac, tu nam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((vu sach) or (so sach)) ngan hang khi đong luc ) or ( tu cam nhan cong khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((vu sach) OR (so sach)) ngan hang khi đong luc ) OR ( tu cam nhan cong khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( ((vu sach) or (so sach)) ngan hang khi đong luc ) or ( tu cam nhan cong khi đong luc ))*.