Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi doc cao snippets" » "khoi doc code snippets", "khoi oc cao snippets", "khoi dong cao snippets", "hoi doi cao snippets", "khoi hoc cao snippets", "khoi do cao snippets", "khoi doc dao 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: (((("python using java snippets") or ("khoi doc cao snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("khoi doc cao snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( khoi doc cao snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("khoi doc cao snippets"))) or ("locating bug core snippets"))*.