Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nhung cong » dung cong, thong cong, hang cong
thanh tra » thanh toan, thanh hoa
van nhung » van nhuong, va nhung, van hung
cong tinh » cong trinh, cong vinh, long tinh
ho chieu » hoc thieu, doi chieu, mot chieu
hanh tam » thanh tam, nhanh tam, hanh tram
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: ((ho chieu) OR (theo chieu)) sach - ((thanh tra) or (hanh tam)) van nhung cong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - ((thanh tra) OR (hanh tam)) van nhung cong tinh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - ((thanh tra) or (hanh tam)) van nhung cong tinh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sach - ((thanh tra) or (hanh tam)) van nhung cong tinh toan cao*.