Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nho gian cua snippets" » "thoi gian cua snippets", "cho giang cua snippets", "ho gia cua snippets", "nho gian xu snippets", "nho ban 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: (((("nho gian 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: (((("nho gian cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nho gian cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nho gian cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.