Perhaps you should try some spelling variations:
dung doanh » dung dan, dung dong
phung cong » nhung cong, phong cong, nhung chong
dung doan » dung dan, dung toan, dong doanh
cong tinh » cong trinh, cong vinh, long tinh
theo hop » theo phap, thao hoc, theo ucp
toan cao » toan ban, toan tap
theo bo » thao bo, theo doi, theo don

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo hop) or (theo bo)) manh - hanh ((dung doan) OR (dung doanh)) phung cong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo hop) OR (theo bo)) manh - hanh ((dung doan) OR (dung doanh)) phung cong tinh toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo hop) or (theo bo)) manh - hanh ((dung doan) OR (dung doanh)) phung cong tinh toan cao*".