Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
canh doanh » hanh doanh, chinh doanh, doanh doanh
luan dung » lan dung, luan hung, luan ung
luan dong » luan cong, quan dong, luan nong
trinh san » trinh han, trinh quan, trinh toan
san cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu tinh - canh doanh ((luan dung) OR (luan dong)) cong trinh san cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu tinh - canh doanh ((luan dung) OR (luan dong)) cong trinh san cau".
• Adding a wildcard symbol may retrieve word variants: toc thieu tinh - canh doanh ((luan dung) OR (luan dong)) cong trinh san cau*.