Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi bach tom snippets" » "thi bich tom snippets", "thi hanh tom snippets", "thi anh tom snippets", "thi bach tuoc snippets", "thi bach hoa snippets", "thi bach thu 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: (((("thi bach tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi bach tom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi bach tom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi bach tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.