Perhaps you should try some spelling variations:
luan trong » quan trong, luat trong, luan tuong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
doc hieu » toc thieu, hoc thieu, hoc hien
cong van » cong vang, cong san, song van
phan cac » phan dau, phan lap, phan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu manh - hanh tang luan trong cong van ((phan cac) OR (nhan cach))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu manh - hanh tang luan trong cong van ((phan cac) OR (nhan cach))".
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - hanh tang luan trong cong van ((phan cac) OR (nhan cach))*.