Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh vat » trinh van, trinh luat, sinh vat
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh ve, trinh vi
cong anh » cong danh, dong anh, hong anh
tuan ban » tuan bang, toan ban, luan 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 chieu tinh - hanh ((tranh va) or (((trinh va) OR (trinh vat)))) nhung cong anh tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh ((tranh va) OR (((trinh va) OR (trinh vat)))) nhung cong anh tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - hanh ((tranh va) or (((trinh va) OR (trinh vat)))) nhung cong anh tuan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh ((tranh va) or (((trinh va) OR (trinh vat)))) nhung cong anh tuan ban*.