Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nang luong » nang song
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh lam » trinh lap, trinh tam, trinh cam
trinh cau » trinh chat, trinh chao, trinh tu
luong dan » huong dan, luong dao, luong van
dan toan » van toan, dan than, manh toan
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 chieu xanh - canh ((trinh lam) or (trinh cau)) nang luong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - canh ((trinh lam) OR (trinh cau)) nang luong dan toan cao*.