Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, chau tinh, kieu tinh
canh doanh » hanh doanh, chinh doanh, doanh doanh
trinh quan » tinh quang, trinh luat, trinh han
lieu tinh » trieu tinh, diep tinh, bien tinh
phan dang » phan cong, nhan dan, phan ung
phan dau » phan tu, hang dau
quan cau » quang cao, toan cau, quan ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((chieu tinh) or (lieu tinh)) - canh doanh ((phan dang) OR (phan dau)) cong trinh quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu tinh) OR (lieu tinh)) - canh doanh ((phan dang) OR (phan dau)) cong trinh quan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu tinh) or (lieu tinh)) - canh doanh ((phan dang) OR (phan dau)) cong trinh quan cau".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu tinh) or (lieu tinh)) - canh doanh ((phan dang) OR (phan dau)) cong trinh quan cau*.