Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tong thong » thong thong, dong thong, cong thong
thien anh » thien danh, tien anh, thien thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
thong dan » thong van, tuong dan, thong den
cua tong » cua cong, cua dong, cua nong
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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 anh) or (hieu manh)) - hanh tranh cua tong thong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (hieu manh)) - hanh tranh cua tong thong dan than cap*.