Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nhung cong » dung cong, thong cong, hang cong
thanh phan » thanh pho, thanh san, thanh toan
bac thanh » ban thanh, cac thanh, tai thanh
ho chieu » hoc thieu, doi chieu, mot chieu
trang va » tran van
cong bac » cong tac, dong bac, cong cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (ho chieu)) tinh - hanh ((trang va) OR (hang va)) nhung cong bac thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) tinh - hanh ((trang va) OR (hang va)) nhung cong bac thanh phan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (ho chieu)) tinh - hanh ((trang va) OR (hang va)) nhung cong bac thanh phan".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) tinh - hanh ((trang va) OR (hang va)) nhung cong bac thanh phan*.