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
trung cam » trung tam, trung cap, trung nam
cam nhung » cam hung, nam nhung, tham nhung
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van
phan tap » phan lap, han tap, pha tap

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 cam nhung ((cong van) OR (song van)) phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu xanh)) - hanh trung cam nhung ((cong van) OR (song van)) phan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (chieu xanh)) - hanh trung cam nhung ((cong van) OR (song van)) phan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chieu xanh)) - hanh trung cam nhung ((cong van) OR (song van)) phan tap*.