Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
canh manh » lanh manh, canh tranh, cach mang
cua thong » cua thuong, cua khong, suat thong
cong toan » cong tan, cong hoan, cong tuan
toan phan » thanh phan, toan ban, hoa phan
doi lieu » duoc lieu, doi chieu, du lieu
cua tong » cua cong, cua dong, cua nong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi lieu tinh - canh manh ((cua thong) OR (cua tong)) cong toan phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi lieu tinh - canh manh ((cua thong) OR (cua tong)) cong toan phan tu".
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - canh manh ((cua thong) OR (cua tong)) cong toan phan tu*.