Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vai cua cau snippets" » "vai cua code snippets", "dai cua cau snippets", "hai cua cau snippets", "lai cua cau snippets", "vai chua cau snippets", "vai cua cac snippets", "vai cua chu 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: (((("vai cua cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vai cua cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( vai cua cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vai cua cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.