Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoa hang ca snippets" » "khoa hang code snippets", "khoa dang ca snippets", "khoai lang ca snippets", "kho tang ca snippets", "khoa hang va snippets", "khoa nang cao snippets", "khoa hang tai 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: (((("khoa hang ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa hang ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoa hang ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa hang ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.