Perhaps you should try some spelling variations:
tdiep quang » dien quang, trien quang, thieu quang
diep quang » dinh quang
thong cong » trong cong, tong cong, thong thong
trinh va » trinh van, trinh vat, trinh vi
trinh ve » trinh he, trinh vi, trinh viet
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((tdiep quang) or (diep quang)) - hanh ((trinh va) OR (trinh ve)) thong cong dan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((tdiep quang) OR (diep quang)) - hanh ((trinh va) OR (trinh ve)) thong cong dan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((tdiep quang) or (diep quang)) - hanh ((trinh va) OR (trinh ve)) thong cong dan phan cac".
• Adding a wildcard symbol may retrieve word variants: toc ((tdiep quang) or (diep quang)) - hanh ((trinh va) OR (trinh ve)) thong cong dan phan cac*.