Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bom van canh snippets" » "bom van anh snippets", "bom van hanh snippets", "bom van manh snippets", "tom van canh snippets", "bom va canh snippets", "gom van canh 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: (((("bom van canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bom van canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bom van canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bom van canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.