Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich sinh ve snippets" » "tinh sinh ve snippets", "tich tinh ve snippets", "tich kinh ve snippets", "lich dinh ve snippets", "lich sinh va snippets", "lich kinh ve 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: (((("lich sinh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lich sinh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich sinh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich sinh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.