Perhaps you should try some spelling variations:
thiet danh » thien danh, thien anh, thien dang
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
quang va » quang van, quan va, quang ma
nhan vat » nhan va, nhan tai, nhan dan
van van » van ban, tan van, san van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet danh - nhanh quang va ((nhung cong) OR (thong cong)) ((van van) or (nhan vat)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - nhanh quang va ((nhung cong) OR (thong cong)) ((van van) OR (nhan vat)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet danh - nhanh quang va ((nhung cong) OR (thong cong)) ((van van) or (nhan vat)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - nhanh quang va ((nhung cong) OR (thong cong)) ((van van) or (nhan vat)) ban*.