Perhaps you should try some spelling variations:
duong cong » luong cong, duong trong, trong cong
hanh tang » hanh trang, anh tang, hanh mang
tang quan » tang luan, nang quan, tong quan
dung cong » dung trong
cho xanh » cho doanh, cho thanh, cho hang
tac phat » tac pham, tam phat, tan phat
phat lap » phan lap, phap lap, phat lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: cao ((cho xanh) or (cho sinh)) - hanh tang quan ((duong cong) OR (dung cong)) tac phat lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cao ((cho xanh) OR (cho sinh)) - hanh tang quan ((duong cong) OR (dung cong)) tac phat lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cao ((cho xanh) or (cho sinh)) - hanh tang quan ((duong cong) OR (dung cong)) tac phat lap".
• Adding a wildcard symbol may retrieve word variants: cao ((cho xanh) or (cho sinh)) - hanh tang quan ((duong cong) OR (dung cong)) tac phat lap*.