Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban duoc hoi snippets" » "tan duoc hoi snippets", "van duoc hoi snippets", "ban thuoc hoi snippets", "ban quoc hoi snippets", "ban duoc hoc snippets", "ban duoc si 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: (((("ban duoc hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban duoc hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban duoc hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban duoc hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.