Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che hoat du snippets" » "che khoa du snippets", "cao hoat du snippets", "co hoat du snippets", "che hoa du snippets", "che hoai duc snippets", "che hoat 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 hoat du 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 hoat du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che hoat du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che hoat du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.