Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"quan cau du snippets" » "quan cau code snippets", "quang cao du snippets", "toan cau du snippets", "quan ha du snippets", "quan cau do snippets", "quan cac du snippets", "quan cau tu 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: (((("quan cau du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan cau du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( quan cau du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan cau du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.