Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"le hoang ve snippets" » "le hong ve snippets", "le quang ve snippets", "le tang ve snippets", "le hoang de snippets", "le hoang va snippets", "le hoang vu 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: (((("le hoang ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("le hoang ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( le hoang ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le hoang ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.