Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc tien
hoc thiet » hoc thieu, hoc thuyet, hoc hien
trinh van » trinh han, trinh quan, trinh toan
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac
tinh va » tich va, trinh vat, tinh gia

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) or (hoc thiet)) danh - hanh ((tinh va) OR (trinh van)) nhung cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thien) OR (hoc thiet)) danh - hanh ((tinh va) OR (trinh van)) nhung cong dan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thien) or (hoc thiet)) danh - hanh ((tinh va) OR (trinh van)) nhung cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: ((hoc thien) or (hoc thiet)) danh - hanh ((tinh va) OR (trinh van)) nhung cong dan than cap*.