Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vong dan cau snippets" » "cong dan cau snippets", "nong dan cau snippets", "dong dan cau snippets", "vong danh cau snippets", "vong dan ca snippets", "vong dat cau snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("vong dan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vong dan cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vong dan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vong dan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.