Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cu quang cua snippets" » "cu quang code snippets", "cu quan cua snippets", "cu quang tuan snippets", "cu quang huy snippets", "chu quang cua snippets", "vu quang cua snippets", "tu quang 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: (((("cu quang 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: (((("cu quang cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cu quang cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cu quang cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.