Perhaps you should try some spelling variations:
thong trong » thuong trong, thong thong, thong thuong
quan thong » quang thong, quan trong, xuan thong
doanh van » doan van, doanh va, doanh ban
trong van » trong cac
van thanh » ban thanh, van tuan
thanh dat » thanh san, thanh hai, thanh van
ho chieu » theo chieu, hoc thieu, doi chieu
van quan » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (mot chieu)) sach - doanh van quan thong trong van thanh dat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (mot chieu)) sach - doanh van quan thong trong van thanh dat*.