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