Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
chieu sach » chinh sach, chiet tach, chieu sang
thang phan » thanh phan, thong phan, than phan
hieu lang » chieu sang, hieu quang, nhieu tang
trung dap » trung cap, trung dai, trung dam
dung cong » dung trong
van thang » van thanh, van khang, van hang
dap dung » ap dung, dan dung, dap ung
cong van » cong vang, cong san, song van

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((chieu sach) or (hieu lang)) - hanh trung dap dung cong van thang phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu sach) OR (hieu lang)) - hanh trung dap dung cong van thang phan*.