Perhaps you should try some spelling variations:
thiet tach » chiet tach, thuat tach
thien hach » thien thanh, hien hanh
hanh trinh » canh tranh, hanh chinh
han duong » hai duong, van duong, thanh duong
han dung » chan dung, hanh dung, phan dung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan 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) OR (thien hach)) - hanh trinh ((han dung) or (han duong)) cong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thiet tach) OR (thien hach)) - hanh trinh ((han dung) OR (han duong)) cong tan toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((thiet tach) OR (thien hach)) - hanh trinh ((han dung) or (han duong)) cong tan toan tap*".