Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung mua do snippets" » "nhung lua do snippets", "nhung mui do snippets", "nhung sua do snippets", "nhung muc do snippets", "nhung mua dong 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: (((("nhung mua 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: (((("nhung mua do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung mua do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung mua do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.