Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
lang cong » dang cong, bang cong, hang cong
thanh cac » hanh cac, thanh bac, thanh ca
hoa lang » hoa dan, hoa van
cong san » cong tac
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: doi chieu sang - ((thanh trung) or (hanh trinh)) hoa lang cong san ((thanh cac) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((thanh trung) OR (hanh trinh)) hoa lang cong san ((thanh cac) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((thanh trung) or (hanh trinh)) hoa lang cong san ((thanh cac) or (khan cap))*.