Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham mat cac snippets" » "ham mat cac snippets", "cham mat cac snippets", "nham mat cac snippets", "tham sat cac snippets", "tham ma cac snippets", "tham mat can 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: (((("tham mat cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tham mat cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham mat cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham mat cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.