Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac dieu cac snippets" » "cac dieu code snippets", "cac kieu cac snippets", "cau dieu cac snippets", "cac bieu cac snippets", "cac dieu can snippets", "cac hieu cac snippets", "cac dien cac 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: (((("cac dieu 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: (((("cac dieu cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cac dieu cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac dieu cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.