Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va dinh » van dinh, va kinh, va tinh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve cua » de cua, te cua, ve cum
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang xa hoi. hieu va cham duc va dinh ((ve cua) or (le cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu va cham duc va dinh ((ve cua) OR (le cua)) te.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu va cham duc va dinh ((ve cua) or (le cua)) te*.