Perhaps you should try some spelling variations:
tranh chua » tranh cua, trinh chuan, tranh chap
chieu sang » chieu sach, chieu xanh, hieu lang
chua chung » cua chung, chua nhung, thuat chung
chung cong » nhung cong, chong cong, phung cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong cao » cong cau, cong cac, cong co
chat cam » chat cao, thuat cam, chat va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu sang)) - canh tranh chua chung cong cao chat cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sang)) - canh tranh chua chung cong cao chat cam*.