Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
hanh trung » thanh trung, hanh trang, manh trung
thong thai » hong thai, thong tai, trong thai
thai quang » tai quang, thac quang, than quang
quang ban » quang binh, quang tuan, quang tran
cua tong » cua dong, cua nong, cua song

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (chieu xanh)) - hanh trung ((cua tong) OR (cua cong)) thong thai quang ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu xanh)) - hanh trung ((cua tong) OR (cua cong)) thong thai quang ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (chieu xanh)) - hanh trung ((cua tong) OR (cua cong)) thong thai quang ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chieu xanh)) - hanh trung ((cua tong) OR (cua cong)) thong thai quang ban*.