Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hanh trinh » canh tranh, hanh chinh
cong ngang » cong nhan, cong quang, cong lang
cong vang » cong lang, cong quang, cong san
ho thiet » hoc thiet, hoa thiet, so thiet
trinh va » trinh van, trinh vat, trinh ve
toan ban » van ban

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

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