Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bat cuong do snippets" » "bac cuong do snippets", "bat cong do snippets", "dai cuong do snippets", "bat cuong dao snippets", "bat cuong vo snippets", "bat 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: (((("bat 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: (((("bat cuong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bat cuong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bat cuong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.