Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho va toi snippets" » "cho vay toi snippets", "choi va toi snippets", "chon va toi snippets", "cho van toi snippets", "cho va tai snippets", "cho va thi 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 va toi 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 va toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho va toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho va toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.