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