Perhaps you should try some spelling variations:
phong tham » phong kham, chong tham, hong tham
nhung cong » thong cong, hang cong, nhung don
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
danh toan » manh toan, anh toan, dan toan
doc lieu » duoc lieu, doc hieu, du lieu
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc lieu tinh - khanh phong tham ((nhung cong) OR (dung cong)) danh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc lieu tinh - khanh phong tham ((nhung cong) OR (dung cong)) danh toan cau".
• Adding a wildcard symbol may retrieve word variants: doc lieu tinh - khanh phong tham ((nhung cong) OR (dung cong)) danh toan cau*.