Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi de doi snippets" » "khoi de code snippets", "khi de doi snippets", "khoa de doi snippets", "khoi he doi snippets", "khoi te doi snippets", "khoi ve doi snippets", "khoi ke doi 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: (((("khoi de doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi de doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoi de doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi de doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.