Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"web cong che snippets" » "web song che snippets", "web huong che snippets", "te cong che snippets", "web cong cho snippets", "web cong chi snippets", "web cong 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: (((("web cong che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("web cong che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( web cong che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("web cong che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.