Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
xquang cao » quang cao, quang bao
doi chieu » doc hieu, doi chi, mot chieu
hoc thong » hoc thuong, hoc trong, hoc hong
xquang ma » quang ma, quang va
tung hoc » trung hoc, tuong hoc, dung hoc
cong anh » cong danh, dong anh, hong anh

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 xanh - thanh tung hoc thong cong anh ((xquang cao) OR (xquang ma))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh tung hoc thong cong anh ((xquang cao) OR (xquang ma))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh tung hoc thong cong anh ((xquang cao) OR (xquang ma))*.