Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
hinh trong » chinh trong, dinh trong, sinh trong
hoc thien » hoc hien, hoc thieu, hoc thiet
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, 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 thien danh - hinh trong ((cua thong) or (cua khong)) cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien danh - hinh trong ((cua thong) OR (cua khong)) cong dan toan cao*.