Perhaps you should try some spelling variations:
thien chanh » thien thanh, thien chinh, hien hanh
thieu hanh » thien thanh, thieu khang, thi hanh
hanh trung » thanh trung, hanh trang, manh trung
chua dung » thuat dung, chua nhung, chan dung
chua dong » cua dong, ha dong, huy dong
trong van » trong cac
van tuan » van quan, van ban, anh tuan
tuan cu » tuan tu, quan cua, tuan thu

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 hanh) or (thien chanh)) - hanh trung ((chua dung) OR (chua dong)) trong van tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu hanh) OR (thien chanh)) - hanh trung ((chua dung) OR (chua dong)) trong van tuan cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu hanh) or (thien chanh)) - hanh trung ((chua dung) OR (chua dong)) trong van tuan cu".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu hanh) or (thien chanh)) - hanh trung ((chua dung) OR (chua dong)) trong van tuan cu*.