Perhaps you should try some spelling variations:
hanh lam » thanh lap, hanh kem, hanh va
lam phat » tam phat, lam chat, nham phat
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
hieu ve » hieu va, hieu van
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ha hoi » hoa hoi, ha noi, xa hoi
ve cac » va cac, vien cac
dau va » dau ve, lau va
du va » tu va, su va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky dang ha hoi. hieu ve cac ((du va) or (dau va)) hanh lam phat trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang ha hoi. hieu ve cac ((du va) OR (dau va)) hanh lam phat trien.
• Adding a wildcard symbol may retrieve word variants: su sac ky dang ha hoi. hieu ve cac ((du va) or (dau va)) hanh lam phat trien*.