Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sang, chieu tinh
chieu sach » chinh sach, chiet tach, chieu sang
luong cong » dung cong, trong cong, cong cong
hieu manh » hieu nganh, dieu hanh, hien hanh
cong sach » ong sach, song sach, duong sach
sach toan » hach toan, sach tranh, hoach toan
trung co » trung bo, trong co, truong cao
co luong » cao luong, do luong, co xuong
toan tap » toan 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) OR (hieu manh))) or (chieu sach)) - thanh trung co luong cong sach toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu xanh) OR (hieu manh))) OR (chieu sach)) - thanh trung co luong cong sach toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((chieu xanh) OR (hieu manh))) or (chieu sach)) - thanh trung co luong cong sach toan tap".
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu xanh) OR (hieu manh))) or (chieu sach)) - thanh trung co luong cong sach toan tap*.