Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gay dung doi snippets" » "xay dung doi snippets", "van dung doi snippets", "ap dung doi snippets", "gay huong doi snippets", "gay dung tai snippets", "gay dung co 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: (((("gay dung doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gay dung doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gay dung doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gay dung doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.