Perhaps you should try some spelling variations:
tham hoc » thai hoc, tham hoa, than hoc
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky dang, ky tang, tay lang
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thuat
ve cac » va cac, vien cac
ve cua » de cua, te cua, ve cum
le cua » ly cua

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

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