Perhaps you should try some spelling variations:
tmanh trung » thanh trung, thanh tung, manh tung
manh trung » manh tung, thanh trung, manh hung
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua thong » cua thuong, cua khong, cua tong
cong bai » cuong bai, cong hai, cung bai
tap cao » tap co, tao cao, tap cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu sach)) - ((manh trung) or (tmanh trung)) cua thong cong bai tap cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - ((manh trung) OR (tmanh trung)) cua thong cong bai tap cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sach)) - ((manh trung) or (tmanh trung)) cua thong cong bai tap cao*.