Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi hanh du snippets" » "chi nhanh du snippets", "chi thanh du snippets", "thi hanh du snippets", "chi hanh dua snippets", "chi hanh tu snippets", "chi hanh de 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: (((("chi hanh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi hanh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi hanh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi hanh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.