Perhaps you should try some spelling variations:
nhanh trinh » hanh trinh, nhanh tinh, thanh trinh
chieu sach » chinh sach, chiet tach, chieu sang
bien tinh » bi tinh, yen tinh, diep tinh
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
cong tac » cong ty
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (bien tinh)) - nhanh trinh cua thong ((cong san) OR (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (bien tinh)) - nhanh trinh cua thong ((cong san) OR (cong tac)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (bien tinh)) - nhanh trinh cua thong ((cong san) OR (cong tac)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (bien tinh)) - nhanh trinh cua thong ((cong san) OR (cong tac)) toan cao*.