Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dong trong » duong trong, cong trong, dong thong
doi chieu » doc hieu, doi chi, ho chieu
trung lam » truong lam, trung tam, trung nam
trong lam » trong cac, trong ca, trong san
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - manh ((trung lam) OR (trong lam)) ((dong trong) or (dung trong)) dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - manh ((trung lam) OR (trong lam)) ((dong trong) OR (dung trong)) dan chan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - manh ((trung lam) OR (trong lam)) ((dong trong) or (dung trong)) dan chan cau*".