Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, chieu xanh
trieu minh » trieu tinh, trien minh, trien kinh
hang hang » nang hang, cang thang, hung thang
ca thang » cau thang, ca tang, ca chang
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tap
hang ca » hang va, nang cao, hang 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 ((thieu manh) OR (trieu minh)) - hang hang ca thang ((cong dong) or (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu manh) OR (trieu minh)) - hang hang ca thang ((cong dong) OR (cong tan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) OR (trieu minh)) - hang hang ca thang ((cong dong) or (cong tan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu manh) OR (trieu minh)) - hang hang ca thang ((cong dong) or (cong tan)) toan cau*.