Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
cong khanh » cong thanh, cong khan, cong nhan
cong hach » cong sach, cong thanh, trong hach
ho chieu » theo chieu, hoc thieu, doi chieu
trung bo » truong bo, trung hoc, trung hoa
toan tap » toan ban
bo dung » bo duong, bo sung, so dung

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 - thanh trung bo dung ((cong hach) OR (cong khanh)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh trung bo dung ((cong hach) OR (cong khanh)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung bo dung ((cong hach) OR (cong khanh)) toan tap*.