Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi cac ke snippets" » "khoi cac code snippets", "hoi cac ke snippets", "khai cac ke snippets", "khoi can ke snippets", "khoi cac ket snippets", "khoi tac ke snippets", "khoi cac ky 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 cac ke 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 cac ke snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoi cac ke snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi cac ke snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.