Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dua hao cach snippets" » "dua nhan cach snippets", "dua phap cach snippets", "dua va cach snippets", "dua vao cach snippets", "duy hao cach snippets", "qua khao cach snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dua hao cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dua hao cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dua hao cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dua hao cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.