Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hieu cua cau snippets" » "hieu cua code snippets", "hieu qua cau snippets", "dieu cua cau snippets", "bieu cua cau snippets", "hieu chua cau snippets", "hieu cua cac snippets", "hieu cua chu 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: (((("hieu cua cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu cua cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hieu cua cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu cua cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.