Perhaps you should try some spelling variations:
cuu phuong » cac phuong, thu phuong
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoang van » hang va
canh dan » canh van, sanh dan, thanh dan
dan cuu » dan cu, dan cua, dan luu
tan ca » tan cua, tang ca, tan ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu sach)) - canh dan cuu phuong hoang van ((tan ca) OR (dan ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - canh dan cuu phuong hoang van ((tan ca) OR (dan ca)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (chieu sach)) - canh dan cuu phuong hoang van ((tan ca) OR (dan ca))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sach)) - canh dan cuu phuong hoang van ((tan ca) OR (dan ca))*.