Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
phap thong » phap phong, pho thong, phap tieng
phap chong » phap phong, phap cong, pham hong
mot chieu » doi chieu, ho chieu
cong bang » cuong bang, dong bang, hong bang
bang than » bang thanh, ban than, sang 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: ((mot chieu) or (theo chieu)) xanh - thanh trung ((phap thong) OR (phap chong)) cong bang than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) xanh - thanh trung ((phap thong) OR (phap chong)) cong bang than cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (theo chieu)) xanh - thanh trung ((phap thong) OR (phap chong)) cong bang than cap*".