Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ich thi doan snippets" » "ich thai doan snippets", "ich thi hoan snippets", "ich thi loan snippets", "lich thai doan snippets", "dinh thi doan snippets", "tich tai doan snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("ich thi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ich thi doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ich thi doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ich thi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.