Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh thai » anh thai, dang thai, dinh thai
cham duc » pham duc, cham soc, pham duy
va cham » va chat, va tham
cua tre » cua te, cuu tre, dua tren
va danh » va dinh, va dan, va hanh
sach ky » sach y, sach ty, sach kem
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
sac ky » cac ky, sai 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 ((sach ky) OR (sac ky)) tang xa hoi. hieu va cham duc va danh thai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) tang xa hoi. hieu va cham duc va danh thai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sac ky)) tang xa hoi. hieu va cham duc va danh thai ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sac ky)) tang xa hoi. hieu va cham duc va danh thai ((cua tre) or (cua triet))*.