Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhanh dung » nhanh dong, hanh dung, nhanh hung
duong anh » duong manh, duong xanh, duong vanh
dung thi » dung tai, dung tri, dung chi
thi nang » thi cong, ki nang, thi hanh
duong va » duong van, dung va, luong va
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) OR (chinh sach)) - nhanh dung thi nang ((duong anh) or (duong va)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chinh sach)) - nhanh dung thi nang ((duong anh) OR (duong va)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chinh sach)) - nhanh dung thi nang ((duong anh) or (duong va)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chinh sach)) - nhanh dung thi nang ((duong anh) or (duong va)) tuan cau*.