Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
nhanh lang » nhanh quang, nhanh thang, nhan dang
hieu manh » chieu xanh, hieu nganh, dieu hanh
lang chua » lang cua, lang chu, lang ha
chua dong » cua dong, ha dong, huy dong
dong cong » duong cong, dung cong, dang cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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 (hieu manh)) - nhanh lang chua dong cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - nhanh lang chua dong cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - nhanh lang chua dong cong dan toan cau*.