Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bui huong so snippets" » "bui chuong so snippets", "bui hong so snippets", "bui duong so snippets", "bui tuong so snippets", "bui muong so snippets", "bui huong co 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: (((("bui huong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bui huong so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bui huong so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bui huong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.