Perhaps you should try some spelling variations:
"truong phan trac snippets" » "trung phan trac snippets", "truong phat trac snippets", "truong thanh trac snippets", "truong phan tap snippets", "truong phan cac snippets", "truong phan tan snippets", "truong phan trac slippers"
"using a code snippets" » "using a core snippets", "using a code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("using a code snippets") or ("truong phan trac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("truong phan trac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( truong phan trac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("truong phan trac snippets"))) or ("locating bug code snippets"))*.