Perhaps you should try some spelling variations:
thong tuong » thong thuong, thong thong, thong duong
lanh tranh » canh tranh, lan tranh, hanh trinh
hoang manh » hoang minh, hoang anh, hoang xanh
tieu sach » chieu sach, dien sach, te sach
cua thong » cua thuong, cua khong, cua tong
tuong van » truong van, trong van, duong van
van tang » van thang, van trang, van nang
tang van » dang van, hoang van, trong van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - ((lanh tranh) or (hoang manh)) cua thong tuong van tang van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((lanh tranh) OR (hoang manh)) cua thong tuong van tang van.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((lanh tranh) or (hoang manh)) cua thong tuong van tang van*.