Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, mot chieu
chinh dat » chinh phat, chinh dang, chinh danh
dat nhung » dap nhung, va nhung, dat hang
van thanh » ban thanh, van tuan
ho chieu » theo chieu, hoc thieu, mot chieu
van hanh » ban hanh, van anh, van ban

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 (doi chieu)) sang - hanh chinh dat nhung cong ((van hanh) or (van thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sang - hanh chinh dat nhung cong ((van hanh) OR (van thanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sang - hanh chinh dat nhung cong ((van hanh) or (van thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sang - hanh chinh dat nhung cong ((van hanh) or (van thanh)) cao*.