Perhaps you should try some spelling variations:
"van hanh code snippets" » "van hanh de snippets", "van hanh cong snippets", "van hanh cad snippets", "van thanh code snippets", "ban hanh code snippets", "van anh code snippets", "van hanh code slippers"
"dong vat code snippets" » "dong va code snippets", "dong von code snippets", "dong ha code snippets", "dong rate code snippets", "dong vat co snippets", "dong vat de snippets", "dong vat code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong vat code snippets") or ("van hanh code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong vat code snippets") OR ("van hanh code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong vat code snippets ) or ( van hanh code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong vat code snippets") or ("van hanh code snippets"))) or ("locating bug code snippets"))*.