Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phap cua hon snippets" » "phap cua code snippets", "phap chua hon snippets", "phap lua hon snippets", "phat cua hon snippets", "phap cua hoi snippets", "phap cua hoc snippets", "phap ca hon 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: (((("phap cua hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap cua hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phap cua hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap cua hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.