Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham lai le snippets" » "pham lan le snippets", "cham mat le snippets", "cham va le snippets", "cham lai de snippets", "cham tai le snippets", "cham hai le 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: (((("cham lai le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cham lai le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham lai le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham lai le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.