Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"che khoa chi snippets" » "che khoa code snippets", "chi khoa chi snippets", "chua khoa chi snippets", "chai khoa chi snippets", "che khoa cham snippets", "che khoa chau snippets", "che ho chi 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: (((("che khoa chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che khoa chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( che khoa chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che khoa chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.