Perhaps you should try some spelling variations:
tuong cong » truong cong, trong cong, tong cong
trinh vat » trinh van, trinh luat, sinh vat
cong tinh » cong trinh, cong vinh, long tinh
cua sinh » hoa sinh, va sinh
toan cau » toan cao, toan ban, toan tap
hoi cua » hoi chuc
tinh va » tich va, trinh van, tinh gia

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi cua sinh - nhanh ((tinh va) OR (trinh vat)) tuong cong tinh toan cau~".
• Adding a wildcard symbol may retrieve word variants: hoi cua sinh - nhanh ((tinh va) OR (trinh vat)) tuong cong tinh toan cau*.