Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che hoa doc snippets" » "che khoa doc snippets", "che hoat doc snippets", "che ho doc snippets", "che hoa duoc snippets", "che hoa hoc snippets", "che hoa doi 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: (((("che hoa doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che hoa doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che hoa doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che hoa doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.