Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh vat, trinh ve
cong tac » cong ty
tac phat » tac pham, tam phat, tan phat
phat cau » phan cau, pha cau, phap cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - canh ((tranh va) or (trinh va)) dung cong tac phat cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh ((tranh va) OR (trinh va)) dung cong tac phat cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh ((tranh va) or (trinh va)) dung cong tac phat cau*.