Perhaps you should try some spelling variations:
nhung cuong » nhung cong, hung cuong, nhung chong
hieu xanh » chieu xanh, hieu manh, hieu nganh
truong ca » truong cao, truong va, trong ca
cuong bai » uong bi, cuong ma
doc hieu » toc thieu, hoc thieu, hoc hien
than cua » nhan cua, thai cua, ban cua
bai toan » bai tap
toan cau » 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: doc hieu xanh - hanh ((than cua) or (truong ca)) nhung cuong bai toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh ((than cua) OR (truong ca)) nhung cuong bai toan cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh ((than cua) or (truong ca)) nhung cuong bai toan cau*.