Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi va hoe snippets" » "khoi va code snippets", "hoi va hoe snippets", "khi va hoe snippets", "choi va hoe snippets", "khoi van hoe snippets", "khoi va hoc snippets", "khoi va hoa 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 va hoe 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 va hoe snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoi va hoe snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi va hoe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.