Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat cho voi snippets" » "chat co voi snippets", "chat thom voi snippets", "cap cho voi snippets", "chat choi voi snippets", "chat cho moi snippets", "chat pho voi 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: (((("chat cho voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chat cho voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat cho voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat cho voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.