Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
nhung trong » hung trong, nhung tuong, thuong trong
thien danh » thien anh, thien dang, thien chanh
quang tuan » quang thanh, quan luan
trong tang » trong trang, trong tan, trong dang
quang cua » quan cua, quang huy, dung cua
tang van » dang van, hoang van, trong van

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 (thien thanh)) - nhanh ((quang cua) OR (quang tuan)) nhung trong tang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (thien thanh)) - nhanh ((quang cua) OR (quang tuan)) nhung trong tang van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien danh) or (thien thanh)) - nhanh ((quang cua) OR (quang tuan)) nhung trong tang van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (thien thanh)) - nhanh ((quang cua) OR (quang tuan)) nhung trong tang van ban*.