Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi toan ho snippets" » "doi toan code snippets", "boi toan ho snippets", "doi tan ho snippets", "doi doanh ho snippets", "doi toan hoc snippets", "doi toan khoa snippets", "doi toan cao snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("doi toan ho snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("doi toan ho snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( doi toan ho snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("doi toan ho snippets"))) or ("locating bug core snippets"))*.