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