Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc hao cach snippets" » "doc nhan cach snippets", "doc phap cach snippets", "doc va cach snippets", "doc dao cach snippets", "doc hai cach snippets", "doc cao 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: (((("doc 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: (((("doc hao cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc hao cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc hao cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.