Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van luan hoc snippets" » "van luan code snippets", "van quan hoc snippets", "van tuan hoc snippets", "von luan hoc snippets", "van luan hoan snippets", "van quang hoc snippets", "van luan khoa snippets"
"python using java snippets" » "python using data snippets"

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 ("van luan hoc snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van luan hoc snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van luan hoc snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van luan hoc snippets"))) or ("locating bug core snippets"))*.