Perhaps you should try some spelling variations:
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
han tri » han tai, thanh tri, chan troi
van tri » van tai, van thi, van toi
va cam » va cham, va cac, va cao
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sach ty)) lang xa hoi. hieu va cam duc va ((han tri) or (van tri)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach ty)) lang xa hoi. hieu va cam duc va ((han tri) OR (van tri)) cua tu.
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach ty)) lang xa hoi. hieu va cam duc va ((han tri) or (van tri)) cua tu*.