Perhaps you should try some spelling variations:
hoc nhanh » hoc phan
vien cac » vien bach, vien dai, vien da
nang hai » hang hai, nang tai, dang hai
lang van » dang van, tang van, hoang van
hai cua » thai cua, dai cua, hoi cua
va nang » van nang, da nang, cam nang
van hoi » van hoa, van hoc, van hoe
cua tre » cua te, cuu tre, cua triet
ve cac » va cac
y lang » o lang, _ lang, tay lang

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) or (hoc nhanh)) y lang van hoi. hieu ((ve cac) OR (vien cac)) duc va nang hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc nganh) OR (hoc nhanh)) y lang van hoi. hieu ((ve cac) OR (vien cac)) duc va nang hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc nganh) or (hoc nhanh)) y lang van hoi. hieu ((ve cac) OR (vien cac)) duc va nang hai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((hoc nganh) or (hoc nhanh)) y lang van hoi. hieu ((ve cac) OR (vien cac)) duc va nang hai cua tre*.