Perhaps you should try some spelling variations:
thong trong » thuong trong, thong thong, thong thuong
chieu sach » chinh sach, chieu sang, chieu xanh
trong van » trong cac
manh cua » doanh cua
van phan » van phong, van thanh, luan phan
phan cau » phan dau, phan cac, phan tu
ban cua » ban quan

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 sach) OR (chiet tach)) - canh ((manh cua) or (ban cua)) thong trong van phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - canh ((manh cua) OR (ban cua)) thong trong van phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chiet tach)) - canh ((manh cua) or (ban cua)) thong trong van phan cau*".