Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
thanh tung » thanh cong
thien anh » thien danh, thien thanh, thien chanh
dung cong » dung trong
tien anh » tieng anh, tien manh, dien anh
tung qua » dung qua, tuong quan, trung quan
qua dung » quang dung, su dung, qua song
cong bai » cuong bai, cong hai, cung bai
tap tap » tap tai, lap tap, tap lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (((thien anh) OR (tien anh)))) - thanh tung qua dung cong bai tap tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (((thien anh) OR (tien anh)))) - thanh tung qua dung cong bai tap tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (((thien anh) OR (tien anh)))) - thanh tung qua dung cong bai tap tap*".