Perhaps you should try some spelling variations:
thanh trinh » hanh trinh, thanh tinh, thanh binh
dong thanh » truong thanh
chieu sang » chieu sach, chieu xanh, nhieu tang
trinh chat » tinh chat, trinh luat, trinh han
hieu lang » hieu quang, nhieu tang, hieu van
cong hanh » cong thanh, cong khanh, hong hanh
hang dong » hang nong, hang cong, hanh dong
hanh cua » manh cua, hang cua, hanh sua
cua hang » cua dang, cua nhung, cua cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) or (chieu sang)) - cong hanh cua hang dong thanh trinh chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu sang)) - cong hanh cua hang dong thanh trinh chat.
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu sang)) - cong hanh cua hang dong thanh trinh chat*.