Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
thoi dai » hoc dai, hoi dap, hoi dan
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky tang xa hoi. hieu ve cham duc va ((tao dai) OR (thoi dai)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky tang xa hoi. hieu ve cham duc va ((tao dai) OR (thoi dai)) cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ky tang xa hoi. hieu ve cham duc va ((tao dai) OR (thoi dai)) cua te*.