Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi khoi gom snippets" » "nhi khoa gom snippets", "khi thai gom snippets", "chi khoa gom snippets", "khi moi gom snippets", "khi hoa gom snippets", "khi khoi lon 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: (((("khi khoi gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi khoi gom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi khoi gom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi khoi gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.