Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sang » chieu sach, chieu xanh, hieu lang
dung cong » dung trong
mang cua » dung cua, ban cua, cong cua
manh cua » doanh cua, ban cua
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan

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 tinh) or (chieu sang)) - hanh ((mang cua) or (manh cua)) dung cong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (chieu sang)) - hanh ((mang cua) OR (manh cua)) dung cong dan phan tu.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (chieu sang)) - hanh ((mang cua) or (manh cua)) dung cong dan phan tu*.