Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi toi cham snippets" » "doi toi code snippets", "doi toc cham snippets", "doi toi pham snippets", "doi thi cham snippets", "doi thoi cham snippets", "doi voi cham snippets", "doi moi cham 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: (((("doi toi cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi toi cham snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi toi cham snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi toi cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.