Perhaps you should try some spelling variations:
thanh trang » thanh trung, thanh thang, thanh tran
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
dung cong » dung trong
gay dung » xay dung, van dung, ap dung
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan cau » toan cao, toan ban, toan tap

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 xanh) OR (chieu xanh)) - ((hanh trang) or (thanh trang)) gay dung cong tap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - ((hanh trang) OR (thanh trang)) gay dung cong tap toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - ((hanh trang) or (thanh trang)) gay dung cong tap toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - ((hanh trang) or (thanh trang)) gay dung cong tap toan cau*.