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