Perhaps you should try some spelling variations:
khuong tinh » chuong trinh, phuong trinh, phuong binh
dung khuong » dung thuong, dung phuong, dung huong
quang tuan » quang thanh, quan luan, quang cua
hieu xanh » chieu xanh, hieu manh, hieu nganh
tung tuan » trung tuan, hung tuan, trang tuan
doc hieu » toc thieu, hoc thieu, hoc hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh ((tung tuan) or (quang tuan)) dung khuong tinh ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh ((tung tuan) OR (quang tuan)) dung khuong tinh ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh ((tung tuan) or (quang tuan)) dung khuong tinh ((toan ban) or (van ban))*.