Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len dang cac snippets" » "le dang cac snippets", "bien dang cac snippets", "kien dang cac snippets", "len dung cac snippets", "len bang cac snippets", "len dong cac 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: (((("len dang cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("len dang cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len dang cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len dang cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.