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