Perhaps you should try some spelling variations:
hoc sac » hoc sach, hoc cac, hoc mac
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
tu tren » tu truyen, tu tieng, tu trong
sac ky » cac ky, sai ky
co hoi » co hoc, co loi
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: hoc sac ky nang co hoi. hieu va cam duc va hanh vi ((cua te) or (tu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky nang co hoi. hieu va cam duc va hanh vi ((cua te) OR (tu tren)).
• Adding a wildcard symbol may retrieve word variants: hoc sac ky nang co hoi. hieu va cam duc va hanh vi ((cua te) or (tu tren))*.