Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hieu cac cua snippets" » "hieu cac code snippets", "hieu luc cua snippets", "hieu va cua snippets", "hieu van cua snippets", "hieu cach cua snippets", "hieu cac qua snippets", "hieu ca 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: (((("hieu cac 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: (((("hieu cac cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hieu cac cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu cac cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.