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