Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » hanh trinh, hanh trang, nhanh thanh
lanh tranh » lan tranh, hanh trinh, sach tranh
hoc thieu » toc thieu, hoc hien
cua trong » cua truong, cua trung, qua trong
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau

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 - ((((hanh tranh) or (lanh tranh))) or (canh tranh)) cua trong cong tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((((hanh tranh) OR (lanh tranh))) OR (canh tranh)) cua trong cong tan phan dau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((((hanh tranh) or (lanh tranh))) or (canh tranh)) cua trong cong tan phan dau*.