Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh tuong » thanh thuong, thanh tung, thanh huong
thien danh » thien anh, thien dang, thien chanh
chieu xanh » chieu sach, chieu sang, chieu tinh
dang cong » dung cong
cong nang » cong ngang, cong lang, cong nong
nang quan » ban quan, nang suat
tuong va » truong va, thuong va, luong va
quan cau » quang cao, toan cau, quan ha
va dang » van dang, va nang, va lang

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 danh) OR (thien thanh))) or (chieu xanh)) - thanh tuong va dang cong nang quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thien danh) OR (thien thanh))) OR (chieu xanh)) - thanh tuong va dang cong nang quan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((thien danh) OR (thien thanh))) or (chieu xanh)) - thanh tuong va dang cong nang quan cau*".