Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi phan co snippets" » "thai phan co snippets", "thi phap co snippets", "tai phan co snippets", "thi phan bo snippets", "thi phan cong snippets", "thi phan cac 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: (((("thi phan 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: (((("thi phan co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi phan co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi phan co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.