Perhaps you should try some spelling variations:
tieng tinh » tieng anh, tien thinh, bien tinh
tien tinh » tien thinh, tien trinh, thien tinh
hanh hang » thanh hang, hang hang, hanh han
hang luan » tang luan, dung luan
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
cong dan » cong san, cong tan, huong dan
phan tap » phan lap, han tap, phan tu
pha tap » pham tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tieng tinh) OR (tien tinh)) - hanh hang luan hung cong dan ((phan tap) or (pha tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tieng tinh) OR (tien tinh)) - hanh hang luan hung cong dan ((phan tap) OR (pha tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tieng tinh) OR (tien tinh)) - hanh hang luan hung cong dan ((phan tap) or (pha tap))".
• Adding a wildcard symbol may retrieve word variants: hoc ((tieng tinh) OR (tien tinh)) - hanh hang luan hung cong dan ((phan tap) or (pha tap))*.