Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
dang luong » nang luong, dung luong, hang luong
hoc thieu » toc thieu, hoc hien
luong van » luong va, duong van, luong vat
cua dang » cua cong, cua ban
ban tap » bai tap, han tap, ban tai

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 - ((thanh trung) or (canh tranh)) cua dang luong van ban tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh trung) OR (canh tranh)) cua dang luong van ban tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh trung) or (canh tranh)) cua dang luong van ban tap*.