Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chu vung cac snippets" » "chu vung code snippets", "chu ung cac snippets", "chu quang cac snippets", "choc vung cac snippets", "chu dung cac snippets", "chu luong cac snippets", "chu cuong cac 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: (((("chu vung cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu vung cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chu vung cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu vung cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.