Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
canh doanh » hanh doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
luan dung » lan dung, luan dong, luan hung
dung cong » dung trong
trinh san » trinh quan, trinh toan, trinh luan
trinh han » trinh quan

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