Perhaps you should try some spelling variations:
lanh tranh » lan tranh, hanh trinh, sach tranh
nhung cong » dung cong, thong cong, hang cong
tan thanh » tran thanh, tang thanh, toan thanh
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau
hoc tan » hoc tang, hoc dan, hoc tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tan thanh - ((lanh tranh) or (canh tranh)) cua nhung cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tan thanh - ((lanh tranh) OR (canh tranh)) cua nhung cong tan tran cau.
• Adding a wildcard symbol may retrieve word variants: hoc tan thanh - ((lanh tranh) or (canh tranh)) cua nhung cong tan tran cau*.