Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
nhung lang » nhung van, nhanh lang, nhung cong
hieu cach » chieu sach, hieu ca, biet cach
trang cua » tranh cua, tang cua, trung cua
hung long » hung luong, khung long, thang long
hieu cac » hieu luc, hieu va, hieu van
toan cao » toan ban, toan 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 ((hieu cach) or (hieu cac)) - hanh trang cua ((nhung lang) or (hung long)) tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu cach) OR (hieu cac)) - hanh trang cua ((nhung lang) OR (hung long)) tinh toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu cach) or (hieu cac)) - hanh trang cua ((nhung lang) or (hung long)) tinh toan cao*.