Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
truong van » trong van, truong va, truong dai
luong van » luong va, duong van, luong vat
anh tang » anh bang, anh dang, anh nang
tang xay » dang xay, thong xay, trong xay
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 tieu trinh - anh tang xay dung ((truong van) or (luong van)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu trinh - anh tang xay dung ((truong van) OR (luong van)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu trinh - anh tang xay dung ((truong van) or (luong van)) toan cau*.