Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"truc cau voi snippets" » "truc cu voi snippets", "truc du voi snippets", "truc va voi snippets", "truc cau hoi snippets", "truc cau doi snippets", "truc cau noi 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: (((("truc cau 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: (((("truc cau voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truc cau voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truc cau voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.