Perhaps you should try some spelling variations:
hoan thanh » hoang thanh, ban thanh, van thanh
cua triet » cua viet, su triet, va triet
ty hoang » ty hang, huy hoang, thi hoang
hoang xa » hoang ha, hoang va, hoang xuan
cham duc » pham duc, cham soc, pham duy
tan hanh » tan thanh, tang hanh, toan hanh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
lam cua » nam cua, lam chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty hoang xa hoi. hieu vu cham duc ((tan hanh) or (hoan thanh)) lam cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty hoang xa hoi. hieu vu cham duc ((tan hanh) OR (hoan thanh)) lam cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty hoang xa hoi. hieu vu cham duc ((tan hanh) or (hoan thanh)) lam cua triet*.