Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tom quoc cho snippets" » "tom luoc cho snippets", "toan quoc cho snippets", "tong quoc cho snippets", "tom nuoc cho snippets", "tom quoc cao snippets", "tom quoc co 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: (((("tom quoc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tom quoc cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tom quoc cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tom quoc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.