Perhaps you should try some spelling variations:
"thu duc hoan snippets" » "thu duc code snippets", "thu duc hoang snippets", "thu duc hoa snippets", "thu duc toan snippets", "thu tuc hoan snippets", "tho duc hoan snippets", "thu muc hoan snippets"
"locating bug core snippets" » "locating bug code 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 ("thu duc hoan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("thu duc hoan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( thu duc hoan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("thu duc hoan snippets"))) or ("locating bug core snippets"))*.