Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"viec do cua snippets" » "viec doc cua snippets", "viec so cua snippets", "viec o cua snippets", "viec doi cua snippets", "viec co cua snippets", "viec de 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: (((("viec do 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: (((("viec do cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viec do cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viec do cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.