Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac phap cho snippets" » "tac pham cho snippets", "tac phat cho snippets", "tay phap cho snippets", "tac phap che snippets", "tac phap chu snippets", "tac phap chong 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 phap 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 phap cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac phap cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac phap cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.