Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
hieu cach » hieu cac, chieu sach, biet cach
chong van » thong van, hong van, phong van
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu
hieu ca » hieu cac, hieu cua, hieu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu cach) or (hieu ca)) - ((hanh tranh) or (hanh trang)) va nhung chong van tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu cach) OR (hieu ca)) - ((hanh tranh) OR (hanh trang)) va nhung chong van tuan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu cach) or (hieu ca)) - ((hanh tranh) or (hanh trang)) va nhung chong van tuan cau*.