Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh tri » thanh tri, hanh tai, hanh trinh
toc sac » toc sach, toc san, hoc sach
nang xa » nang x, lang xa, nang ma
van lam » van nam
xuc van » duc van, xuc ban, thuc van
luc van » luoc van, luu van, duc van
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky nang xa hoi. hieu van lam ((xuc van) OR (luc van)) hanh tri ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky nang xa hoi. hieu van lam ((xuc van) OR (luc van)) hanh tri ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky nang xa hoi. hieu van lam ((xuc van) OR (luc van)) hanh tri ((cua te) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: toc sac ky nang xa hoi. hieu van lam ((xuc van) OR (luc van)) hanh tri ((cua te) or (cua tu))*.