Perhaps you should try some spelling variations:
"thi du hoan snippets" » "thi du code snippets", "thi duc hoan snippets", "thi du doan snippets", "thi su hoan snippets", "thi dua hoan snippets", "thi dau hoan snippets", "thi diu hoan snippets"
"locating bug core snippets" » "locating bug code 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 ("thi du 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 ("thi du hoan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( thi du hoan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("thi du hoan snippets"))) or ("locating bug core snippets"))*.