Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
cua thang » cua hang, cua thanh, cua thuong
xua thang » xuan thang, xuan thanh, xuan trang
long dan » long doan, cong dan, nong dan
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 tinh - canh tranh ((cua thang) or (xua thang)) long dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - canh tranh ((cua thang) OR (xua thang)) long dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - canh tranh ((cua thang) or (xua thang)) long dan toan cao*.