Perhaps you should try some spelling variations:
"han using data snippets" » "han using java snippets", "han using sat snippets", "han missing data snippets", "han ung data snippets", "h2o using data snippets", "han ping data snippets", "han using data slippers"
"dong cua code snippets" » "dung cua code snippets", "cong cua code snippets", "huong cua code snippets", "dong cua cong snippets", "dong cua co snippets", "dong cfd code snippets", "dong cua code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("han using data snippets") or ("dong cua code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han using data snippets") OR ("dong cua code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han using data snippets ) or ( dong cua code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han using data snippets") or ("dong cua code snippets"))) or ("locating bug code snippets"))*.