Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu luu hoan snippets" » "thu luu hoang snippets", "thu cuu hoan snippets", "thu luan hoan snippets", "thi luu hoan snippets", "thuy luc hoan 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: (((("thu luu hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu luu hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu luu hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu luu hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.