Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha cuong do snippets" » "pha cung do snippets", "pham chuong do snippets", "phan xuong do snippets", "pha cuong dao snippets", "pha cuong vo snippets", "pha luong do 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: (((("pha cuong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha cuong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha cuong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha cuong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.