Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh dao me snippets" » "trinh do me snippets", "trinh da me snippets", "trinh dan me snippets", "trinh dam me snippets", "trinh dao ve snippets", "trinh dao le 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: (((("trinh dao me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dao me snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dao me snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dao me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.