Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau thau doi snippets" » "dau tu doi snippets", "dau thay doi snippets", "dau thai doi snippets", "dau thanh doi 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: (((("dau thau 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: (((("dau thau doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau thau doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau thau doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.