Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thieu xanh » chieu xanh, hieu manh, thien danh
trinh tran » trinh trang, trinh toan, trinh tren
quan trong » gian trong
thien anh » thien danh, tien anh, thien thanh
tran quan » tran quang, tran xuan, tran tuan
khoan tap » khoa tap, khoan tai, 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: hoc ((thieu xanh) or (thien anh)) - hanh trinh tran quan trong cac khoan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - hanh trinh tran quan trong cac khoan tap*.