Perhaps you should try some spelling variations:
nhung phong » nhung phuong, nhung chong, nung phong
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
hoc chieu » hoc thieu, ho chieu, hoc hien
cua nhung » va nhung
phong van » phung van, thong van, phong va
tuan ban » tuan bang, toan ban, quang ban
luan ban » luan van, luan san, luan han

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 tranh) OR (hanh trang)) cua nhung phong van ((tuan ban) or (luan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - ((hanh tranh) OR (hanh trang)) cua nhung phong van ((tuan ban) OR (luan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - ((hanh tranh) OR (hanh trang)) cua nhung phong van ((tuan ban) or (luan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - ((hanh tranh) OR (hanh trang)) cua nhung phong van ((tuan ban) or (luan ban))*.