Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tuong va » truong va, thuong va, luong va
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
tan khan » tan khang, tan nhan, toan khoan
khan cap » khan ap, than cap, khoan cam

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 (hieu manh)) - thanh tuong va thong cong tan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (hieu manh)) - thanh tuong va thong cong tan khan cap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (hieu manh)) - thanh tuong va thong cong tan khan cap*.