Perhaps you should try some spelling variations:
thiet trinh » thuyet trinh, tien trinh, viet trinh
thep thiet » thep viet, thuyet thiet
trong dan » trong dang, trong san, trong tan
cua phan » cua nhan, cua phap, cua han
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap
anh ban » anh bang, anh bai, anh van
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thep thiet trinh - anh ban cua phan ((cong tan) or (((trong dan) or (trong cac)))) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thep thiet trinh - anh ban cua phan ((cong tan) OR (((trong dan) OR (trong cac)))) toan cao.
• Adding a wildcard symbol may retrieve word variants: thep thiet trinh - anh ban cua phan ((cong tan) or (((trong dan) or (trong cac)))) toan cao*.