Perhaps you should try some spelling variations:
"trong thoi code snippets" » "trong thi code snippets", "trong tho code snippets", "trong trot code snippets", "trong thoi code slippers"
"using raw code snippets" » "using real code snippets", "using a code snippets", "using low code snippets", "using rate code snippets", "using raw code slippers"
"locating bug code 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 raw code snippets") or ("trong thoi code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using raw code snippets") OR ("trong thoi code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using raw code snippets ) or ( trong thoi code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using raw code snippets") or ("trong thoi code snippets"))) or ("locating bug code snippets"))*.