Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
trang tuan » tran tuan, trung tuan, tran xuan
trong tuan » trong quan, trung tuan, trong tan
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
cong ban » cong bang, cong san, cong tan
ban chat » van chat, bao chat, luan chat
chat co » thuat co, chat cua, chat deo

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) OR (hieu manh)) - hanh ((trang tuan) or (trong tuan)) dung cong ban chat co~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hanh ((trang tuan) OR (trong tuan)) dung cong ban chat co.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - hanh ((trang tuan) or (trong tuan)) dung cong ban chat co".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - hanh ((trang tuan) or (trong tuan)) dung cong ban chat co*.