Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thien hieu » thien nhien, thien chien, thien hue
hieu lang » chieu sang, hieu quang, nhieu tang
hanh manh » hanh mang, lanh manh, hoang manh
cua thong » cua thuong, cua khong, cua tong
manh cua » doanh cua, ban cua
cong van » cong vang, cong san, song van
than tap » toan tap, han tap, than cap
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: thien hieu lang - hanh manh cua thong cong van ((than tap) OR (phan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thien hieu lang - hanh manh cua thong cong van ((than tap) OR (phan tap))".
• Adding a wildcard symbol may retrieve word variants: thien hieu lang - hanh manh cua thong cong van ((than tap) OR (phan tap))*.