Perhaps you should try some spelling variations:
hanh tranh » hanh trinh, hanh trang, lanh tranh
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan han » tan nhan, tran han, tan van
han tu » phan tu, hanh tu, ban tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (hien hanh)) - ((hanh tranh) OR (canh tranh)) cua nhung cong tan han tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - ((hanh tranh) OR (canh tranh)) cua nhung cong tan han tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien hanh)) - ((hanh tranh) OR (canh tranh)) cua nhung cong tan han tu".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - ((hanh tranh) OR (canh tranh)) cua nhung cong tan han tu*.