Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
thanh dai » thanh hai, thanh tai, thanh dat
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky dang, ky tang, tay lang
hieu ve » hieu va, hieu van
cac dac » cac dan, cac dai, cac bac
ve cac » va cac, vien cac
dac va » duc va, day va, dat va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nganh ((ky lang) or (ky nang)) van hoa. hieu ve cac dac va thanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nganh ((ky lang) OR (ky nang)) van hoa. hieu ve cac dac va thanh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: hoc nganh ((ky lang) or (ky nang)) van hoa. hieu ve cac dac va thanh dai cua triet*.