Perhaps you should try some spelling variations:
"hang va chai snippets" » "hang va code snippets", "hang va cai snippets", "hang va cham snippets", "hang va chat snippets", "nang va chai snippets", "dang va chai snippets", "hanh va chai snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data 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: (((("hang va chai snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang va chai snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hang va chai snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang va chai snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.