Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham cuu hoa snippets" » "cap cuu hoa snippets", "chat cua hoa snippets", "cham cuu khoa snippets", "cham cuu hoan snippets", "cham cau hoa 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: (((("cham cuu hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cham cuu hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham cuu hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham cuu hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.