Perhaps you should try some spelling variations:
tien trinh » tien thinh, bien tinh, tien thanh
nhung cong » dung cong, thong cong, hang cong
theo tien » theo tieu, thuc tien, theo tcvn
trung cua » truong cua, trung tuan, trung cap
tang cua » mang cua, hang cua, tang luan
cong bai » cuong bai, cong hai, cung bai
bai toan » bai tap
toan cau » 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: theo tien trinh - thanh ((tang cua) or (trung cua)) nhung cong bai toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tien trinh - thanh ((tang cua) OR (trung cua)) nhung cong bai toan cau.
• Adding a wildcard symbol may retrieve word variants: theo tien trinh - thanh ((tang cua) or (trung cua)) nhung cong bai toan cau*.