Perhaps you should try some spelling variations:
thieu vien » thieu nien, thieu bien, thu vien
vien cac » vien bach, vien dai, vien da
luu hanh » huu han
hanh vai » hanh vi, hanh va, hanh van
hanh tai » thanh tai, hang tai, han tai
nang xa » nang x, lang xa, nang ma
luc van » luoc van, luu van, duc van
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang xa hoi. thieu vien cac ((luc van) or (luu hanh)) ((hanh vai) or (hanh tai)) va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. thieu vien cac ((luc van) OR (luu hanh)) ((hanh vai) OR (hanh tai)) va thiet.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. thieu vien cac ((luc van) or (luu hanh)) ((hanh vai) or (hanh tai)) va thiet*.