Perhaps you should try some spelling variations:
thi hanh » thi thanh
cham duc » cham soc, pham duy, phan duc
kinh cuu » dinh cuu, vinh cuu, kinh suu
sach ky » sach y, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
va than » va thanh, van than, va phan
cuu tre » cua tre, cau tren, cau treo
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)) nang xa hoi. thi hanh ((cham duc) OR (pham duc)) va than kinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) nang xa hoi. thi hanh ((cham duc) OR (pham duc)) va than kinh cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sac ky)) nang xa hoi. thi hanh ((cham duc) OR (pham duc)) va than kinh cuu tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sac ky)) nang xa hoi. thi hanh ((cham duc) OR (pham duc)) va than kinh cuu tre*.