Perhaps you should try some spelling variations:
cong luong » cong thuong, nang luong, cong dong
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh manh » hanh mang, hoang manh, thanh minh
lanh manh » lanh tranh, lan anh, van manh
luong van » luong va, duong van, luong vat
ban cau » bang cau, van cau, ban dau
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - ((hanh manh) or (lanh manh)) cua cong luong van ((ban cau) OR (ban can))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - ((hanh manh) OR (lanh manh)) cua cong luong van ((ban cau) OR (ban can)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - ((hanh manh) or (lanh manh)) cua cong luong van ((ban cau) OR (ban can))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((hanh manh) or (lanh manh)) cua cong luong van ((ban cau) OR (ban can))*.