Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho gia do snippets" » "cho giao do snippets", "ho gia do snippets", "cho ga do snippets", "cho gia dao snippets", "cho gia doi snippets", "cho giac do 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 gia do 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 gia do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho gia do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho gia do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.