Perhaps you should try some spelling variations:
khong duong » khong dung, khong xuong, thong duong
thieu manh » hieu manh, tien manh, trieu minh
hanh tranh » canh tranh, hanh trinh, hanh trang
duong sach » duong manh
trinh chao » trinh chat, trinh han, trinh co
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
tien anh » tieng anh, tien manh, dien anh
chat » nhat, phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu manh) or (tien anh)) - hanh tranh cua khong duong sach ((trinh chao) or (tinh chat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu manh) OR (tien anh)) - hanh tranh cua khong duong sach ((trinh chao) OR (tinh chat)).
• Adding a wildcard symbol may retrieve word variants: toc ((thieu manh) or (tien anh)) - hanh tranh cua khong duong sach ((trinh chao) or (tinh chat))*.