Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
hieu lang » chieu sang, hieu quang, nhieu tang
cua trong » cua truong, cua trung, ca trong
qua trong » quan trong, qua trinh, qua song
cong can » cong san, cong tan, cong dan
can phan » van phan, cac phan, can chan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu sach)) - thanh dung ((cua trong) or (qua trong)) cong can phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sach)) - thanh dung ((cua trong) OR (qua trong)) cong can phan cac.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sach)) - thanh dung ((cua trong) or (qua trong)) cong can phan cac*.