Perhaps you should try some spelling variations:
hanh thong » anh thong, hanh trong, hang thong
chieu sang » chieu sach, chieu xanh, hieu lang
chau tinh » cuu tinh, ha tinh, cua tinh
thong ung » thong dung, thong cung, thong vung
trong san » trong cac, cong san, dong san
dong von » dung von, dong co, dong hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (chau tinh)) - hanh thong ung dung ((trong san) or (dong von)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chau tinh)) - hanh thong ung dung ((trong san) OR (dong von)) van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chau tinh)) - hanh thong ung dung ((trong san) or (dong von)) van ban*.