Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
han thai » han tai, ban thai, than thoai
van thai » van thoai, van tai, van hai
te sach » toc sach
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang xa hoi. hieu van cam xuc va ((han thai) OR (van thai)) va (thiet or thieu)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu van cam xuc va ((han thai) OR (van thai)) va (thiet OR thieu).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. hieu van cam xuc va ((han thai) OR (van thai)) va (thiet or thieu)".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu van cam xuc va ((han thai) OR (van thai)) va (thiet or thieu)*.