Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach pham do snippets" » "sach tham do snippets", "sach phat do snippets", "sach phap do snippets", "sach pham doi snippets", "sach pham mo snippets", "sach pham o 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: (((("python using java snippets") or ("sach pham do snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("sach pham do snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( sach pham do snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("sach pham do snippets"))) or ("locating bug code snippets"))*.