Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phia den cua snippets" » "phja den cua snippets", "nhi den cua snippets", "phia dien cua snippets", "phia de cua snippets", "phia dan cua 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: (((("phia den cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phia den cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phia den cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phia den cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.