Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sang » chieu sach, chieu xanh, hieu lang
chieu tinh » trieu tinh, lieu tinh, chau tinh
cong thanh » dong thanh, cong trinh, cong tan
thanh hang » thanh hoang, thanh thang, tranh hang
tuong hoc » truong hoc, tuong ho, duong hoc
dung cong » dung trong
hoc dung » hoc ung, hoc dan, tac dung
hang ca » hang va, nang cao, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chieu tinh)) - thanh tuong hoc dung cong thanh hang ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu tinh)) - thanh tuong hoc dung cong thanh hang ca.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu tinh)) - thanh tuong hoc dung cong thanh hang ca*.