Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
theo phap » thi phap
phap manh » phap nang, phap tang, pham anh
tang suat » nang suat, tang luat, tang luan
cong tinh » cong trinh, cong vinh, long tinh
anh tang » anh bang, anh dang, anh nang
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo phap manh - anh tang suat thong cong tinh toan ban~.
• Adding a wildcard symbol may retrieve word variants: theo phap manh - anh tang suat thong cong tinh toan ban*.