Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh han » hanh nhan, hanh phan, hanh san
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, cong dong
than tap » toan tap, han tap, phan tap
han va » hang va, hanh va, nhan va

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 - hanh han va thong ((cong dan) or (huong dan)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh han va thong ((cong dan) OR (huong dan)) than tap.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh han va thong ((cong dan) or (huong dan)) than tap*.