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