Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
hanh trong » hanh trang, anh trong, hinh trong
trong hoac » trong hoat, trong hoan, trong hoa
hoac khong » hoa khong, hoc khong, hay khong
hoc thien » hoc hien, hoc thieu, hoc thiet
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien danh - hanh trong hoac khong ((cong dan) OR (cong tan)) ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien danh - hanh trong hoac khong ((cong dan) OR (cong tan)) ((toan ban) OR (van ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien danh - hanh trong hoac khong ((cong dan) OR (cong tan)) ((toan ban) or (van ban))*".