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