Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc pho can snippets" » "duc tho can snippets", "duc phong can snippets", "duc phan can snippets", "duc cho can snippets", "duc pho cap snippets", "duc pho cam 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: (((("duc pho 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: (((("duc pho can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc pho can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc pho can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.