Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho duoc con snippets" » "che duoc con snippets", "co duoc con snippets", "cho cuoc con snippets", "cho duoc co snippets", "cho duc con snippets", "cho nuoc cong 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: (((("cho duoc con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho duoc con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho duoc con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho duoc con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.