Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trung chan » trung phan, trong chan, trung can
chan dung » van dung, dan dung
tuong tac » cong tac
luong tai » dung tai, luong va
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - thanh trung chan dung ((((tuong tac) OR (tuong lai))) or (luong tai)) tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh trung chan dung ((((tuong tac) OR (tuong lai))) OR (luong tai)) tran cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh trung chan dung ((((tuong tac) OR (tuong lai))) or (luong tai)) tran cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung chan dung ((((tuong tac) OR (tuong lai))) or (luong tai)) tran cau*.