Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri mong du snippets" » "tri cong du snippets", "tri mang du snippets", "tri dong du snippets", "tri muong du snippets", "tri mong do snippets", "tri song du 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 mong du 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 mong du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri mong du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri mong du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.