Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuy van he snippets" » "thuy san he snippets", "thuc van he snippets", "chu van he snippets", "thuy van hoe snippets", "thuy van hue snippets", "thuy van de 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: (((("thuy van 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: (((("thuy van he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuy van he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuy van he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.