Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi su cua snippets" » "khoi su code snippets", "khoi hu cua snippets", "khoi tu cua snippets", "khoi vu cua snippets", "khoa su cua snippets", "hoi su cua snippets", "thoi su 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: (((("khoi 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: (((("khoi su cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoi su cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi su cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.