Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
lieu tinh » trieu tinh, diep tinh, bien tinh
hang cong » dang cong, hang nong, bang cong
trinh va » trinh van, trinh vat, trinh ve
van toan » van tuan, van tan, van thanh
toan ban » van ban
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - hanh ((trinh va) or (trinh luat)) ((hang cong) or (thong cong)) van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh ((trinh va) OR (trinh luat)) ((hang cong) OR (thong cong)) van toan ban.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh ((trinh va) or (trinh luat)) ((hang cong) or (thong cong)) van toan ban*.