Perhaps you should try some spelling variations:
nhanh trinh » hanh trinh, thanh trinh, thanh tinh
nhanh thanh » phan thanh
nhanh tinh » hanh trinh, nhan sinh
trinh toan » tinh toan, thanh toan, trinh han
tong cong » trong cong, cong cong, dung cong
cua sinh » hoa sinh, va sinh
toan ban » van ban
va tong » va thong, va tuong, va trong

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

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