Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
trong dang » truong dang, trong dan, trong dong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
dang van » hoang van, hang va

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) or (hieu manh)) - hanh tang cua dung trong dang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (hieu manh)) - hanh tang cua dung trong dang van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (hieu manh)) - hanh tang cua dung trong dang van ban*.