Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
thanh tap » thanh lap, thanh tai, thanh tay
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong van » cong vang, cong san, cong tan
song van » hoang van, trong van, duong van

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) or (doi chieu)) xanh - anh tang cua nhung ((cong van) OR (song van)) thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chieu)) xanh - anh tang cua nhung ((cong van) OR (song van)) thanh tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (doi chieu)) xanh - anh tang cua nhung ((cong van) OR (song van)) thanh tap".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chieu)) xanh - anh tang cua nhung ((cong van) OR (song van)) thanh tap*.