Perhaps you should try some spelling variations:
trien thuat » thien thuat, trien hoat, chien thuat
chieu sang » chieu sach, chieu xanh, hieu lang
chinh thuc » chinh phuc, hinh thuc, trinh thuc
nhung cong » dung cong, thong cong, hang cong
manh toan » thanh toan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu

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