Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
thieu sang » thieu khang, thieu quang, hieu lang
chieu sang » chieu sach, chieu xanh, hieu lang
dang thanh » dong thanh, dang hanh, hoang thanh
tuong qua » tuong quan, duong qua, thong qua
dung cong » dung trong
cong dang » cong dong, cong dan, cong dung
thanh cau » thanh chau, thanh mau, nhanh cau
qua dung » quang dung, su dung, qua song

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 sang) or (chieu sang)) - thanh tuong qua dung cong dang thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sang) OR (chieu sang)) - thanh tuong qua dung cong dang thanh cau*.