Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
truong ham » truong dai, truong cao, truong va
truong dao » truong dai, truong cao, truong bo
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
ho chieu » theo chieu, hoc thieu, doi chieu
toan cao » toan tap
toan ban » 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 xanh - hanh ((truong ham) or (truong dao)) nhung cong thanh ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh ((truong ham) OR (truong dao)) nhung cong thanh ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh ((truong ham) or (truong dao)) nhung cong thanh ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh ((truong ham) or (truong dao)) nhung cong thanh ((toan cao) OR (toan ban))*.