Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap dao co snippets" » "phap day co snippets", "phap dam co snippets", "phap dau co snippets", "phap dao cao snippets", "phap dao cho snippets", "phap dao o 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: (((("phap dao co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap dao co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap dao co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap dao co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.