Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"kha dung cac snippets" » "kha dung code snippets", "khoa dung cac snippets", "khao dung cac snippets", "nha dung cac snippets", "kha luong cac snippets", "kha dung cho snippets", "kha dung tai 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: (((("kha dung 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: (((("kha dung cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( kha dung cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kha dung cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.