Perhaps you should try some spelling variations:
pham thuc » pham chuc, nham thuc, pham thu
thanh kem » hanh kem, thanh ke, thanh ket
phap thuc » phap thu, phap hoc, phap tu
va thanh » gia thanh, ban thanh, va tinh
ca tren » cau tren, cu tren, la tren
hieu ve » hieu va, hieu van
mang xa » lang xa, mang may, dang xay
kem ca » kem cd
bao ky » cao ky, ban ky, bac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te bao ky ((mang xa) or (nang x)) hoi. hieu ve ((pham thuc) OR (phap thuc)) va thanh kem ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bao ky ((mang xa) OR (nang x)) hoi. hieu ve ((pham thuc) OR (phap thuc)) va thanh kem ca tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te bao ky ((mang xa) or (nang x)) hoi. hieu ve ((pham thuc) OR (phap thuc)) va thanh kem ca tren".
• Adding a wildcard symbol may retrieve word variants: te bao ky ((mang xa) or (nang x)) hoi. hieu ve ((pham thuc) OR (phap thuc)) va thanh kem ca tren*.