Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac chat cho snippets" » "tao chat cho snippets", "cac chat cho snippets", "tac phat cho snippets", "tac chat co snippets", "tac chat thom snippets", "tac cap cho 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: (((("tac chat 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: (((("tac chat cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac chat cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac chat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.