Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong su cua snippets" » "cong su code snippets", "cong suc cua snippets", "cong sua cua snippets", "cong cu cua snippets", "cong hu cua snippets", "cong tu cua snippets", "cong vu cua 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: (((("cong su cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong su cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong su cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong su cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.