Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac dieu cau snippets" » "cac dieu code snippets", "cac kieu cau snippets", "cau dieu cau snippets", "cac bieu cau snippets", "cac dieu can snippets", "cac diem cau snippets", "cac dieu cam 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: (((("python using java snippets") or ("cac dieu cau snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cac dieu cau snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cac dieu cau snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cac dieu cau snippets"))) or ("locating bug core snippets"))*.