Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
lieu tinh » diep tinh, bien tinh
tranh cua » doanh cua, manh cua
ban nong » ban cong, ban nang, ban tong
nong tam » nong lam, dong tam, song tam
tam toan » tap toan, tam than, pham toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chau tinh) or (((lieu tinh) OR (trieu tinh)))) - canh tranh cua ban nong tam toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chau tinh) OR (((lieu tinh) OR (trieu tinh)))) - canh tranh cua ban nong tam toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chau tinh) or (((lieu tinh) OR (trieu tinh)))) - canh tranh cua ban nong tam toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chau tinh) or (((lieu tinh) OR (trieu tinh)))) - canh tranh cua ban nong tam toan tap*.