Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuc anh son snippets" » "tuc hanh son snippets", "duc anh son snippets", "tu anh son snippets", "tuc anh dong snippets", "tuc tinh son 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: (((("tuc anh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuc anh son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuc anh son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuc anh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.