Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
trinh toan » tinh toan, thanh toan, trinh han
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
trang va » hang va
tran van » luan van
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: theo chu xanh - thanh ((trang va) OR (tran van)) nhung cong trinh toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - thanh ((trang va) OR (tran van)) nhung cong trinh toan tap*".