Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tom tap cho snippets" » "tom tat cho snippets", "toi tap cho snippets", "toan tap cho snippets", "tom tap co snippets", "tom cap cho snippets", "tom tap chi 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 tap 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 tap cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tom tap cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tom tap cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.