Perhaps you should try some spelling variations:
trong doanh » trong nganh
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, chieu xanh, hieu lang
trang doan » tran doan, trang tuan, quang doan
phung cong » nhung cong, phong cong, nhung chong
cong tinh » cong trinh, cong vinh, long tinh
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: he ((nhieu tang) OR (chieu sang)) - hanh ((trang doan) or (trong doanh)) phung cong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: he ((nhieu tang) OR (chieu sang)) - hanh ((trang doan) OR (trong doanh)) phung cong tinh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "he ((nhieu tang) OR (chieu sang)) - hanh ((trang doan) or (trong doanh)) phung cong tinh toan tap".
• Adding a wildcard symbol may retrieve word variants: he ((nhieu tang) OR (chieu sang)) - hanh ((trang doan) or (trong doanh)) phung cong tinh toan tap*.