Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
quang tuan » quang thanh, quan luan, quang cua
duong manh » duong van
tieu xanh » tieu danh, chieu xanh, dieu hanh
tung tuan » trung tuan, hung tuan, trang tuan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh ((tung tuan) OR (quang tuan)) nhung duong manh ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh ((tung tuan) OR (quang tuan)) nhung duong manh ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh ((tung tuan) OR (quang tuan)) nhung duong manh ((toan cau) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ((tung tuan) OR (quang tuan)) nhung duong manh ((toan cau) or (toan cao))*.