Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, mot chieu
trung cua » truong cua, trung tuan, trung cap
phan tong » phan trong, phan cong, han tong
dan khoan » dan khoa, dai khoang, toan khoan
khoan cam » khoa cam, khoan va, phan cam
cua phan » cua nhan, cua phap, cua han
tong dan » tuong dan, thong dan, trong dan

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 sang - thanh trung cua phan tong dan khoan cam~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - thanh trung cua phan tong dan khoan cam*.