Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
trinh toan » tinh toan, thanh toan, trinh han
phap tinh » phap sinh, phap tieng, tap tinh
phap tang » phap nang, phap tieng
cua nhung » va nhung
toan ban » van ban
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: theo ((phap tinh) or (phap tang)) - anh ban cua nhung cong trinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((phap tinh) OR (phap tang)) - anh ban cua nhung cong trinh toan ban*.