Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong tung » thong trung, thong dung, thong cung
tuong va » truong va, thuong va, luong va
tung dan » dung dan, huong dan, trung dai
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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 (chieu tinh)) - thanh ((tuong va) or (dung va)) thong tung dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu tinh)) - thanh ((tuong va) OR (dung va)) thong tung dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu tinh)) - thanh ((tuong va) or (dung va)) thong tung dan toan cau*.