Perhaps you should try some spelling variations:
tinh doi » trinh doc, trinh do, tinh hoc
ky nganh » ky nang, ly ngan, k ngan
tinh voi » trinh voi, binh voi, minh voi
mac hoi » mai hoi, sach hoi, mac phai
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
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: tu san ky nganh mac hoi. hieu va cam duc va ((tinh voi) or (tinh doi)) ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nganh mac hoi. hieu va cam duc va ((tinh voi) OR (tinh doi)) ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: tu san ky nganh mac hoi. hieu va cam duc va ((tinh voi) or (tinh doi)) ((cua te) or (cua tu))*.