Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho tuoi con snippets" » "cho nguoi con snippets", "thi tuoi con snippets", "cho moi con snippets", "cho nuoi con snippets", "cho muoi cuon snippets", "cho ruou con 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 tuoi 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 tuoi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho tuoi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho tuoi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.