Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu tan chu snippets" » "thu tuan chu snippets", "thu ban chu snippets", "thu tin chu snippets", "thu can chu snippets", "thu tan phu snippets", "thu van chu 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: (((("thu tan chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu tan chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu tan chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu tan chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.