Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc van cho snippets" » "thuc van cho snippets", "phuc va cho snippets", "chuc van cho snippets", "phuc van chi snippets", "phuc san cho snippets", "phuc van chat 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: (((("phuc van 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: (((("phuc van cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc van cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc van cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.