Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu xanh » chieu xanh, hieu manh, hieu nganh
cua trong » cua truong, cua trung, ca trong
qua trong » quan trong, qua trinh, qua song
doc hieu » toc thieu, hoc thieu, hoc hien
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban

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 xanh - hanh tranh ((cua trong) OR (qua trong)) cong san toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - hanh tranh ((cua trong) OR (qua trong)) cong san toan tap".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh tranh ((cua trong) OR (qua trong)) cong san toan tap*.