Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
dung chung » dung cong, dung ung, dung trung
chung tinh » nhung tinh, chung minh, hung tinh
hieu xanh » chieu xanh, hieu manh, hieu nganh
tung tuan » trung tuan, hung tuan, trang tuan
doc hieu » toc thieu, hoc thieu, hoc hien
toan ban » van ban

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