Perhaps you should try some spelling variations:
hien tinh » khien tinh, thien tinh, bien tinh
tang luan » dung luan
dung cong » dung trong
cong doan » cong dan, cong hoan, dong doanh
doan phan » doanh phan, toan phan, dan phan
tang cua » mang cua, hang cua, thong cua
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien tinh - hanh ((tang cua) OR (tang luan)) dung cong doan phan lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien tinh - hanh ((tang cua) OR (tang luan)) dung cong doan phan lap".
• Adding a wildcard symbol may retrieve word variants: hoc hien tinh - hanh ((tang cua) OR (tang luan)) dung cong doan phan lap*.