Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri phu cua snippets" » "thi phu cua snippets", "tri thuc cua snippets", "tri phan cua snippets", "tri phuc cua snippets", "tri hu cua snippets", "tri thu 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: (((("tri phu 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: (((("tri phu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri phu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri phu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.