Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pho danh cua snippets" » "pho danh code snippets", "kho danh cua snippets", "cho doanh cua snippets", "khao danh cua snippets", "pho doanh cua snippets", "pho manh cua snippets", "pho dinh cua 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: (((("pho danh cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho danh cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pho danh cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho danh cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.