Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
canh trinh » canh tranh, hanh trinh, canh tinh
cong thang » cong thanh, cang thang, cong thong
manh binh » thanh binh, ninh binh, tinh binh
dung cong » dung trong
thang ban » hang ban, tang ban, thanh ban
ha dung » hai dung, hat dung, kha dung
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu tach - ((canh trinh) or (manh binh)) ha dung cong thang ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu tach - ((canh trinh) OR (manh binh)) ha dung cong thang ban can*.