Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phap cau voi snippets" » "phap cau code snippets", "phan cau voi snippets", "pha cau voi snippets", "phap ca voi snippets", "phap cau hoi snippets", "phap cau doi snippets", "phap cau noi snippets"
"python using java snippets" » "python using data 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: (((("phap cau voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap cau voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phap cau voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap cau voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.