Perhaps you should try some spelling variations:
cham truong » pham truong, cac truong, nha truong
hanh trinh » canh tranh, hanh chinh
cam truong » cac truong, lam truong, cao truong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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 tinh - hanh trinh ((cham truong) OR (cam truong)) cong dan phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu tinh - hanh trinh ((cham truong) OR (cam truong)) cong dan phan cau*".