Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"keo cung cua snippets" » "tho cung cua snippets", "le cung cua snippets", "heo rung cua snippets", "keo chung cua snippets", "keo dung cua snippets", "keo cong cua 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: (((("keo cung cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("keo cung cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( keo cung cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("keo cung cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.