Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc va chua snippets" » "nuoc va chua snippets", "duc va chua snippets", "duoc ma chua snippets", "duoc vua chua snippets", "duoc ca chua snippets", "duoc va chu 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: (((("duoc va chua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc va chua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc va chua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc va chua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.