Perhaps you should try some spelling variations:
thuong cong » thuong con, thuong dong, truong cong
thong cong » trong cong, tong cong, thong thong
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
nhan taig » nhan tao, han tai, nhan dang
nhan tai » hang tai, van tai, toan tai
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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 tinh - ((nhan taig) or (nhan tai)) va ((thuong cong) OR (thong cong)) san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - ((nhan taig) OR (nhan tai)) va ((thuong cong) OR (thong cong)) san than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo phap tinh - ((nhan taig) or (nhan tai)) va ((thuong cong) OR (thong cong)) san than cau".
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - ((nhan taig) or (nhan tai)) va ((thuong cong) OR (thong cong)) san than cau*.