Perhaps you should try some spelling variations:
thu sac » thu sach, thu san, thu xac
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
cua tuc » cua duc, cua tu, cua thuoc
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
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: thu sac ky ((nang xa) or (nang ma)) hoi. hieu va cam duc va hanh va ((cua te) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky ((nang xa) OR (nang ma)) hoi. hieu va cam duc va hanh va ((cua te) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: thu sac ky ((nang xa) or (nang ma)) hoi. hieu va cam duc va hanh va ((cua te) or (cua tuc))*.