Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuong le he snippets" » "xuong len he snippets", "vuong qh he snippets", "trong le he snippets", "vuong ke he snippets", "vuong ly he snippets", "vuong le ha 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: (((("vuong le he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vuong le he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuong le he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuong le he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.